Rejected reason: This CVE was marked as fixed, but due to other code landing - was not actually fixed. It was subsequently fixed in CVE-2025-5986.

The remote AlmaLinux 8 host has a package installed that is affected by multiple vulnerabilities as referenced in the ALSA-2025:8756 advisory.

    * thunderbird: JavaScript Execution via Spoofed PDF Attachment and file:/// Link (CVE-2025-3909)
      * thunderbird: Sender Spoofing via Malformed From Header in Thunderbird (CVE-2025-3875)
      * thunderbird: Unsolicited File Download, Disk Space Exhaustion, and Credential Leakage via mailbox:///     Links (CVE-2025-3877)
      * thunderbird: Tracking Links in Attachments Bypassed Remote Content Blocking (CVE-2025-3932)
      * firefox: thunderbird: Out-of-bounds access when resolving Promise objects (CVE-2025-4918)
      * firefox: thunderbird: Out-of-bounds access when optimizing linear sums (CVE-2025-4919)
      * firefox: thunderbird: Clickjacking vulnerability could have led to leaking saved payment card details     (CVE-2025-5267)
      * firefox: thunderbird: Potential local code execution in ?Copy as cURL? command (CVE-2025-5264)
      * firefox: thunderbird: Memory safety bugs (CVE-2025-5268)
      * firefox: thunderbird: Script element events leaked cross-origin resource status (CVE-2025-5266)
      * firefox: thunderbird: Error handling for script execution was incorrectly isolated from web content     (CVE-2025-5263)
      * firefox: thunderbird: Memory safety bug (CVE-2025-5269)

Tenable has extracted the preceding description block directly from the AlmaLinux security advisory.

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

The remote Oracle Linux 8 host has a package installed that is affected by multiple vulnerabilities as referenced in the ELSA-2025-8756 advisory.

    [128.11.0-1.0.1]
    - Fix prefs for new nss [Orabug: 37079820]
    - Add Oracle prefs file

    [128.11.0]
    - Add OpenELA debranding

    [128.11.0-1]
    - Update to 128.11.0

    [128.10.1-1]
    - Update to 128.10.1

Tenable has extracted the preceding description block directly from the Oracle Linux security advisory.

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

The remote Redhat Enterprise Linux 8 host has a package installed that is affected by multiple vulnerabilities as referenced in the RHSA-2025:8784 advisory.

    Mozilla Thunderbird is a standalone mail and newsgroup client.

    Security Fix(es):

    * thunderbird: JavaScript Execution via Spoofed PDF Attachment and file:/// Link (CVE-2025-3909)

    * thunderbird: Sender Spoofing via Malformed From Header in Thunderbird (CVE-2025-3875)

    * thunderbird: Unsolicited File Download, Disk Space Exhaustion, and Credential Leakage via mailbox:///     Links (CVE-2025-3877)

    * thunderbird: Tracking Links in Attachments Bypassed Remote Content Blocking (CVE-2025-3932)

    For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and     other related information, refer to the CVE page(s) listed in the References section.

Tenable has extracted the preceding description block directly from the Red Hat Enterprise Linux security advisory.

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

The remote Redhat Enterprise Linux 8 host has a package installed that is affected by multiple vulnerabilities as referenced in the RHSA-2025:8756 advisory.

    Mozilla Thunderbird is a standalone mail and newsgroup client.

    Security Fix(es):

    * thunderbird: JavaScript Execution via Spoofed PDF Attachment and file:/// Link (CVE-2025-3909)

    * thunderbird: Sender Spoofing via Malformed From Header in Thunderbird (CVE-2025-3875)

    * thunderbird: Unsolicited File Download, Disk Space Exhaustion, and Credential Leakage via mailbox:///     Links (CVE-2025-3877)

    * thunderbird: Tracking Links in Attachments Bypassed Remote Content Blocking (CVE-2025-3932)

    * firefox: thunderbird: Out-of-bounds access when resolving Promise objects (CVE-2025-4918)

    * firefox: thunderbird: Out-of-bounds access when optimizing linear sums (CVE-2025-4919)

    * firefox: thunderbird: Clickjacking vulnerability could have led to leaking saved payment card details     (CVE-2025-5267)

    * firefox: thunderbird: Potential local code execution in ?Copy as cURL? command (CVE-2025-5264)

    * firefox: thunderbird: Memory safety bugs (CVE-2025-5268)

    * firefox: thunderbird: Script element events leaked cross-origin resource status (CVE-2025-5266)

    * firefox: thunderbird: Error handling for script execution was incorrectly isolated from web content     (CVE-2025-5263)

    * firefox: thunderbird: Memory safety bug (CVE-2025-5269)

    For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and     other related information, refer to the CVE page(s) listed in the References section.

Tenable has extracted the preceding description block directly from the Red Hat Enterprise Linux security advisory.

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

The remote Redhat Enterprise Linux 10 host has a package installed that is affected by multiple vulnerabilities as referenced in the RHSA-2025:8196 advisory.

    Mozilla Thunderbird is a standalone mail and newsgroup client.

    Security Fix(es):

    * thunderbird: JavaScript Execution via Spoofed PDF Attachment and file:/// Link (CVE-2025-3909)

    * thunderbird: Sender Spoofing via Malformed From Header in Thunderbird (CVE-2025-3875)

    * thunderbird: Unsolicited File Download, Disk Space Exhaustion, and Credential Leakage via mailbox:///     Links (CVE-2025-3877)

    * thunderbird: Tracking Links in Attachments Bypassed Remote Content Blocking (CVE-2025-3932)

    For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and     other related information, refer to the CVE page(s) listed in the References section.

Tenable has extracted the preceding description block directly from the Red Hat Enterprise Linux security advisory.

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

The remote Redhat Enterprise Linux 8 host has a package installed that is affected by multiple vulnerabilities as referenced in the RHSA-2025:8594 advisory.

    Mozilla Thunderbird is a standalone mail and newsgroup client.

    Security Fix(es):

    * thunderbird: JavaScript Execution via Spoofed PDF Attachment and file:/// Link (CVE-2025-3909)

    * thunderbird: Sender Spoofing via Malformed From Header in Thunderbird (CVE-2025-3875)

    * thunderbird: Unsolicited File Download, Disk Space Exhaustion, and Credential Leakage via mailbox:///     Links (CVE-2025-3877)

    * thunderbird: Tracking Links in Attachments Bypassed Remote Content Blocking (CVE-2025-3932)

    For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and     other related information, refer to the CVE page(s) listed in the References section.

Tenable has extracted the preceding description block directly from the Red Hat Enterprise Linux security advisory.

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

The remote Redhat Enterprise Linux 8 host has a package installed that is affected by multiple vulnerabilities as referenced in the RHSA-2025:8507 advisory.

    Mozilla Thunderbird is a standalone mail and newsgroup client.

    Security Fix(es):

    * thunderbird: JavaScript Execution via Spoofed PDF Attachment and file:/// Link (CVE-2025-3909)

    * thunderbird: Sender Spoofing via Malformed From Header in Thunderbird (CVE-2025-3875)

    * thunderbird: Unsolicited File Download, Disk Space Exhaustion, and Credential Leakage via mailbox:///     Links (CVE-2025-3877)

    * thunderbird: Tracking Links in Attachments Bypassed Remote Content Blocking (CVE-2025-3932)

    For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and     other related information, refer to the CVE page(s) listed in the References section.

Tenable has extracted the preceding description block directly from the Red Hat Enterprise Linux security advisory.

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

The remote Redhat Enterprise Linux 8 host has a package installed that is affected by multiple vulnerabilities as referenced in the RHSA-2025:8391 advisory.

    Mozilla Thunderbird is a standalone mail and newsgroup client.

    Security Fix(es):

    * thunderbird: JavaScript Execution via Spoofed PDF Attachment and file:/// Link (CVE-2025-3909)

    * thunderbird: Sender Spoofing via Malformed From Header in Thunderbird (CVE-2025-3875)

    * thunderbird: Unsolicited File Download, Disk Space Exhaustion, and Credential Leakage via mailbox:///     Links (CVE-2025-3877)

    * thunderbird: Tracking Links in Attachments Bypassed Remote Content Blocking (CVE-2025-3932)

    For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and     other related information, refer to the CVE page(s) listed in the References section.

Tenable has extracted the preceding description block directly from the Red Hat Enterprise Linux security advisory.

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

The remote SUSE Linux SLED15 / SLED_SAP15 / SLES15 / SLES_SAP15 host has packages installed that are affected by multiple vulnerabilities as referenced in the SUSE-SU-2025:01660-2 advisory.

    Update to Mozilla Thunderbird 128.10.1.

    Security fixes:

    - MFSA 2025-34 (bsc#1243216)
      * CVE-2025-3875: Sender Spoofing via Malformed From Header in Thunderbird.
      * CVE-2025-3877: Unsolicited File Download, Disk Space Exhaustion, and Credential Leakage via     mailbox:/// Links.
      * CVE-2025-3909: JavaScript Execution via Spoofed PDF Attachment and file:/// Link.
      * CVE-2025-3932: Tracking Links in Attachments Bypassed Remote Content Blocking.

    Other bug fixes:

    - Fixed: standalone message windows/tabs that no longer responded after folder compaction.
    - Fixed: Thunderbird could crash when importing Outlook messages.
    - Visual and UX improvements.

Tenable has extracted the preceding description block directly from the SUSE security advisory.

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

The remote Redhat Enterprise Linux 9 host has a package installed that is affected by multiple vulnerabilities as referenced in the RHSA-2025:8324 advisory.

    Mozilla Thunderbird is a standalone mail and newsgroup client.

    Security Fix(es):

    * thunderbird: JavaScript Execution via Spoofed PDF Attachment and file:/// Link (CVE-2025-3909)

    * thunderbird: Sender Spoofing via Malformed From Header in Thunderbird (CVE-2025-3875)

    * thunderbird: Unsolicited File Download, Disk Space Exhaustion, and Credential Leakage via mailbox:///     Links (CVE-2025-3877)

    * thunderbird: Tracking Links in Attachments Bypassed Remote Content Blocking (CVE-2025-3932)

    For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and     other related information, refer to the CVE page(s) listed in the References section.

Tenable has extracted the preceding description block directly from the Red Hat Enterprise Linux security advisory.

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

The remote Redhat Enterprise Linux 9 host has a package installed that is affected by multiple vulnerabilities as referenced in the RHSA-2025:8325 advisory.

    Mozilla Thunderbird is a standalone mail and newsgroup client.

    Security Fix(es):

    * thunderbird: JavaScript Execution via Spoofed PDF Attachment and file:/// Link (CVE-2025-3909)

    * thunderbird: Sender Spoofing via Malformed From Header in Thunderbird (CVE-2025-3875)

    * thunderbird: Unsolicited File Download, Disk Space Exhaustion, and Credential Leakage via mailbox:///     Links (CVE-2025-3877)

    * thunderbird: Tracking Links in Attachments Bypassed Remote Content Blocking (CVE-2025-3932)

    For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and     other related information, refer to the CVE page(s) listed in the References section.

Tenable has extracted the preceding description block directly from the Red Hat Enterprise Linux security advisory.

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

The remote Redhat Enterprise Linux 9 host has a package installed that is affected by multiple vulnerabilities as referenced in the RHSA-2025:8326 advisory.

    Mozilla Thunderbird is a standalone mail and newsgroup client.

    Security Fix(es):

    * thunderbird: JavaScript Execution via Spoofed PDF Attachment and file:/// Link (CVE-2025-3909)

    * thunderbird: Sender Spoofing via Malformed From Header in Thunderbird (CVE-2025-3875)

    * thunderbird: Unsolicited File Download, Disk Space Exhaustion, and Credential Leakage via mailbox:///     Links (CVE-2025-3877)

    * thunderbird: Tracking Links in Attachments Bypassed Remote Content Blocking (CVE-2025-3932)

    For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and     other related information, refer to the CVE page(s) listed in the References section.

Tenable has extracted the preceding description block directly from the Red Hat Enterprise Linux security advisory.

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

The version of thunderbird installed on the remote host is prior to 128.10.1-1. It is, therefore, affected by multiple vulnerabilities as referenced in the ALAS2-2025-2859 advisory.

    Thunderbird parses addresses in a way that can allow sender spoofing in case the server allows an invalid     From address to be used. For example, if the From header contains an (invalid) value Spoofed Name  ,     Thunderbird treats spoofed@example.com as the actual address. This vulnerability affects Thunderbird <     128.10.1 and Thunderbird < 138.0.1. (CVE-2025-3875)

    A crafted HTML email using mailbox:/// links can trigger automatic, unsolicited downloads of .pdf files to     the user's desktop or home directory without prompting, even if auto-saving is disabled. This behavior can     be abused to fill the disk with garbage data (e.g. using /dev/urandom on Linux) or to leak Windows     credentials via SMB links when the email is viewed in HTML mode. While user interaction is required to     download the .pdf file, visual obfuscation can conceal the download trigger. Viewing the email in HTML     mode is enough to load external content. This vulnerability affects Thunderbird < 128.10.1 and Thunderbird     < 138.0.1. (CVE-2025-3877)

    Thunderbird's handling of the X-Mozilla-External-Attachment-URL header can be exploited to execute     JavaScript in the file:/// context. By crafting a nested email attachment (message/rfc822) and setting its     content type to application/pdf, Thunderbird may incorrectly render it as HTML when opened, allowing the     embedded JavaScript to run without requiring a file download. This behavior relies on Thunderbird auto-     saving the attachment to /tmp and linking to it via the file:/// protocol, potentially enabling JavaScript     execution as part of the HTML. This vulnerability affects Thunderbird < 128.10.1 and Thunderbird <     138.0.1. (CVE-2025-3909)

    It was possible to craft an email that showed a tracking link as an attachment. If the user attempted to     open the attachment, Thunderbird automatically accessed the link. The configuration to block remote     content did not prevent that. Thunderbird has been fixed to no longer allow access to web pages listed in     the X-Mozilla-External-Attachment-URL header of an email. This vulnerability affects Thunderbird <     128.10.1 and Thunderbird < 138.0.1. (CVE-2025-3932)

Tenable has extracted the preceding description block directly from the tested product security advisory.

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

The remote Oracle Linux 9 host has a package installed that is affected by multiple vulnerabilities as referenced in the ELSA-2025-8203 advisory.

    [128.10.1-1.0.1]
    - Fix prefs for new nss [Orabug: 37079813]
    - Add Oracle prefs

    [128.10.1]
    - Add OpenELA debranding

    [128.10.1-1]
    - Update to 128.10.1

Tenable has extracted the preceding description block directly from the Oracle Linux security advisory.

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

The remote Redhat Enterprise Linux 9 host has a package installed that is affected by multiple vulnerabilities as referenced in the RHSA-2025:8203 advisory.

    Mozilla Thunderbird is a standalone mail and newsgroup client.

    Security Fix(es):

    * thunderbird: JavaScript Execution via Spoofed PDF Attachment and file:/// Link (CVE-2025-3909)

    * thunderbird: Sender Spoofing via Malformed From Header in Thunderbird (CVE-2025-3875)

    * thunderbird: Unsolicited File Download, Disk Space Exhaustion, and Credential Leakage via mailbox:///     Links (CVE-2025-3877)

    * thunderbird: Tracking Links in Attachments Bypassed Remote Content Blocking (CVE-2025-3932)

    For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and     other related information, refer to the CVE page(s) listed in the References section.

Tenable has extracted the preceding description block directly from the Red Hat Enterprise Linux security advisory.

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

The remote SUSE Linux SLED15 / SLED_SAP15 / SLES15 / SLES_SAP15 / openSUSE 15 host has packages installed that are affected by multiple vulnerabilities as referenced in the SUSE-SU-2025:01660-1 advisory.

    Update to Mozilla Thunderbird 128.10.1.

    Security fixes:

    - MFSA 2025-34 (bsc#1243216)
      * CVE-2025-3875: Sender Spoofing via Malformed From Header in Thunderbird.
      * CVE-2025-3877: Unsolicited File Download, Disk Space Exhaustion, and Credential Leakage via     mailbox:/// Links.
      * CVE-2025-3909: JavaScript Execution via Spoofed PDF Attachment and file:/// Link.
      * CVE-2025-3932: Tracking Links in Attachments Bypassed Remote Content Blocking.

    Other bug fixes:

    - Fixed: standalone message windows/tabs that no longer responded after folder compaction.
    - Fixed: Thunderbird could crash when importing Outlook messages.
    - Visual and UX improvements.

Tenable has extracted the preceding description block directly from the SUSE security advisory.

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

The remote Debian 11 host has packages installed that are affected by multiple vulnerabilities as referenced in the dla-4167 advisory.

    - -------------------------------------------------------------------------     Debian LTS Advisory DLA-4167-1                debian-lts@lists.debian.org     https://www.debian.org/lts/security/                          Lee Garrett     May 18, 2025                                  https://wiki.debian.org/LTS
    - -------------------------------------------------------------------------

    Package        : thunderbird     Version        : 1:128.10.1esr-1~deb11u1     CVE ID         : CVE-2025-2817 CVE-2025-4082 CVE-2025-4083 CVE-2025-4084                      CVE-2025-4087 CVE-2025-4091 CVE-2025-4093 CVE-2025-3875                      CVE-2025-3877 CVE-2025-3909 CVE-2025-3932

    Multiple security issues were discovered in Thunderbird, which could     result in the execution of arbitrary code or information disclosure.

    For Debian 11 bullseye, these problems have been fixed in version     1:128.10.1esr-1~deb11u1.

    We recommend that you upgrade your thunderbird packages.

    For the detailed security status of thunderbird please refer to     its security tracker page at:
    https://security-tracker.debian.org/tracker/thunderbird

    Further information about Debian LTS security advisories, how to apply     these updates to your system and frequently asked questions can be     found at: https://wiki.debian.org/LTS

Tenable has extracted the preceding description block directly from the Debian security advisory.

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

The version of mozilla-thunderbird installed on the remote host is prior to 128.10.1esr. It is, therefore, affected by multiple vulnerabilities as referenced in the SSA:2025-136-01 advisory.

    New mozilla-thunderbird packages are available for Slackware 15.0 and -current to fix security issues.

Tenable has extracted the preceding description block directly from the mozilla-thunderbird security advisory.

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

The remote Debian 12 host has packages installed that are affected by multiple vulnerabilities as referenced in the dsa-5921 advisory.

    - -------------------------------------------------------------------------     Debian Security Advisory DSA-5921-1                   security@debian.org     https://www.debian.org/security/                       Moritz Muehlenhoff     May 16, 2025                          https://www.debian.org/security/faq
    - -------------------------------------------------------------------------

    Package        : thunderbird     CVE ID         : CVE-2025-3875 CVE-2025-3877 CVE-2025-3909 CVE-2025-3932

    Multiple security issues were discovered in Thunderbird, which could     result in spoofing of From: mail headers, execution of JavaScript or     information disclosure.

    For the stable distribution (bookworm), these problems have been fixed in     version 1:128.10.1esr-1~deb12u1.

    We recommend that you upgrade your thunderbird packages.

    For the detailed security status of thunderbird please refer to     its security tracker page at:
    https://security-tracker.debian.org/tracker/thunderbird

    Further information about Debian Security Advisories, how to apply     these updates to your system and frequently asked questions can be     found at: https://www.debian.org/security/

    Mailing list: debian-security-announce@lists.debian.org

Tenable has extracted the preceding description block directly from the Debian security advisory.

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

ID	Name	Product	Family	Severity
238241	AlmaLinux 8 : thunderbird (ALSA-2025:8756)	Nessus	Alma Linux Local Security Checks	high
238235	Oracle Linux 8 : thunderbird (ELSA-2025-8756)	Nessus	Oracle Linux Local Security Checks	high
238063	RHEL 8 : thunderbird (RHSA-2025:8784)	Nessus	Red Hat Local Security Checks	high
238062	RHEL 8 : thunderbird (RHSA-2025:8756)	Nessus	Red Hat Local Security Checks	high
237833	RHEL 10 : thunderbird (RHSA-2025:8196)	Nessus	Red Hat Local Security Checks	high
237772	RHEL 8 : thunderbird (RHSA-2025:8594)	Nessus	Red Hat Local Security Checks	high
237743	RHEL 8 : thunderbird (RHSA-2025:8507)	Nessus	Red Hat Local Security Checks	high
237662	RHEL 8 : thunderbird (RHSA-2025:8391)	Nessus	Red Hat Local Security Checks	high
237564	SUSE SLED15 / SLES15 Security Update : MozillaThunderbird (SUSE-SU-2025:01660-2)	Nessus	SuSE Local Security Checks	high
237521	RHEL 9 : thunderbird (RHSA-2025:8324)	Nessus	Red Hat Local Security Checks	high
237492	RHEL 9 : thunderbird (RHSA-2025:8325)	Nessus	Red Hat Local Security Checks	high
237491	RHEL 9 : thunderbird (RHSA-2025:8326)	Nessus	Red Hat Local Security Checks	high
237468	Amazon Linux 2 : thunderbird (ALAS-2025-2859)	Nessus	Amazon Linux Local Security Checks	high
237394	Oracle Linux 9 : thunderbird (ELSA-2025-8203)	Nessus	Oracle Linux Local Security Checks	high
237391	RHEL 9 : thunderbird (RHSA-2025:8203)	Nessus	Red Hat Local Security Checks	high
237156	SUSE SLED15 / SLES15 / openSUSE 15 Security Update : MozillaThunderbird (SUSE-SU-2025:01660-1)	Nessus	SuSE Local Security Checks	high
236944	Debian dla-4167 : thunderbird - security update	Nessus	Debian Local Security Checks	critical
236882	Slackware Linux 15.0 / current mozilla-thunderbird Multiple Vulnerabilities (SSA:2025-136-01)	Nessus	Slackware Local Security Checks	high
236871	Debian dsa-5921 : thunderbird - security update	Nessus	Debian Local Security Checks	high

Detections

Analytics

CVE-2025-3877

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