The version of Thunderbird installed on the remote Windows host is prior to 128.11. It is, therefore, affected by multiple vulnerabilities as referenced in the mfsa2025-46 advisory.

  - Memory safety bug present in Firefox ESR 128.10, and Thunderbird 128.10. This bug showed evidence of     memory corruption and we presume that with enough effort this could have been exploited to run arbitrary     code. (CVE-2025-5269)

  - A double-free could have occurred in `vpxcodecencinitmulti` after a failed allocation when initializing     the encoder for WebRTC. This could have caused memory corruption and a potentially exploitable crash.
    (CVE-2025-5262)

  - Error handling for script execution was incorrectly isolated from web content, which could have allowed     cross-origin leak attacks. (CVE-2025-5263)

  - Due to insufficient escaping of the newline character in the Copy as cURL feature, an attacker could     trick a user into using this command, potentially leading to local code execution on the user's system.
    (CVE-2025-5264)

  - Due to insufficient escaping of the ampersand character in the Copy as cURL feature, an attacker could     trick a user into using this command, potentially leading to local code execution on the user's system.
    This bug only affects Firefox for Windows. Other versions of Firefox are unaffected. (CVE-2025-5265)

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 128.11.0esr. It is, therefore, affected by multiple vulnerabilities as referenced in the SSA:2025-148-02 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 AlmaLinux 9 host has packages installed that are affected by multiple vulnerabilities as referenced in the ALSA-2025:8293 advisory.

    * 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 version of FreeBSD installed on the remote host is prior to tested version. It is, therefore, affected by a vulnerability as referenced in the 61be5684-4222-11f0-976e-b42e991fc52e advisory.

    security@mozilla.org reports:
    Script elements loading cross-origin resources generated load and             error events which leaked information enabling XS-Leaks attacks.

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

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

The remote Redhat Enterprise Linux 7 host has a package installed that is affected by multiple vulnerabilities as referenced in the RHSA-2025:9074 advisory.

    Mozilla Firefox is an open-source web browser, designed for standards compliance, performance, and     portability.

    Security Fix(es):

    * 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 9 host has packages installed that are affected by multiple vulnerabilities as referenced in the RHSA-2025:9071 advisory.

    Mozilla Firefox is an open-source web browser, designed for standards compliance, performance, and     portability.

    Security Fix(es):

    * 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 8 host has a package installed that is affected by multiple vulnerabilities as referenced in the RHSA-2025:8628 advisory.

    Mozilla Thunderbird is a standalone mail and newsgroup client.

    Security Fix(es):

    * 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 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.

ID	Name	Product	Family	Published	Updated	Severity
237388	Mozilla Thunderbird < 128.11	Nessus	Windows	5/27/2025	6/12/2025	medium
237428	Slackware Linux 15.0 / current mozilla-thunderbird Multiple Vulnerabilities (SSA:2025-148-02)	Nessus	Slackware Local Security Checks	5/28/2025	5/28/2025	medium
237520	AlmaLinux 9 : firefox (ALSA-2025:8293)	Nessus	Alma Linux Local Security Checks	5/30/2025	5/30/2025	medium
237884	FreeBSD : Mozilla -- XS-leak attack (61be5684-4222-11f0-976e-b42e991fc52e)	Nessus	FreeBSD Local Security Checks	6/6/2025	6/6/2025	medium
238483	RHEL 7 : firefox (RHSA-2025:9074)	Nessus	Red Hat Local Security Checks	6/16/2025	6/16/2025	medium
238496	RHEL 9 : firefox (RHSA-2025:9071)	Nessus	Red Hat Local Security Checks	6/16/2025	6/16/2025	medium
237958	RHEL 8 : thunderbird (RHSA-2025:8628)	Nessus	Red Hat Local Security Checks	6/9/2025	6/16/2025	high
238062	RHEL 8 : thunderbird (RHSA-2025:8756)	Nessus	Red Hat Local Security Checks	6/10/2025	6/16/2025	high

Detections

Analytics

Plugins Search

medium

medium

medium

medium

medium

medium

high

high