The remote AlmaLinux 9 host has a package installed that is affected by multiple vulnerabilities as referenced in the ALSA-2025:4460 advisory.

    * firefox: thunderbird: Privilege escalation in Firefox Updater (CVE-2025-2817)
      * firefox: thunderbird: Unsafe attribute access during XPath parsing (CVE-2025-4087)
      * firefox: thunderbird: Process isolation bypass using javascript: URI links in cross-origin frames     (CVE-2025-4083)
      * firefox: thunderbird: Memory safety bugs fixed in Firefox 138, Thunderbird 138, Firefox ESR 128.10,     and Thunderbird 128.10 (CVE-2025-4091)
      * firefox: thunderbird: Memory safety bug fixed in Firefox ESR 128.10 and Thunderbird 128.10     (CVE-2025-4093)

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 Redhat Enterprise Linux 10 host has a package installed that is affected by multiple vulnerabilities as referenced in the RHSA-2025:7506 advisory.

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

    Security Fix(es):

    * firefox: thunderbird: Privilege escalation in Firefox Updater (CVE-2025-2817)

    * firefox: thunderbird: Unsafe attribute access during XPath parsing (CVE-2025-4087)

    * firefox: thunderbird: Process isolation bypass using javascript: URI links in cross-origin frames     (CVE-2025-4083)

    * firefox: thunderbird: Memory safety bugs fixed in Firefox 138, Thunderbird 138, Firefox ESR 128.10, and     Thunderbird 128.10 (CVE-2025-4091)

    * firefox: thunderbird: Memory safety bug fixed in Firefox ESR 128.10 and Thunderbird 128.10     (CVE-2025-4093)

    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 macOS or Mac OS X host is prior to 138.0. It is, therefore, affected by multiple vulnerabilities as referenced in the mfsa2025-31 advisory.

  - Memory safety bugs present in Firefox 137, Thunderbird 137, Firefox ESR 128.9, and Thunderbird 128.9. Some     of these bugs showed evidence of memory corruption and we presume that with enough effort some of these     could have been exploited to run arbitrary code. (CVE-2025-4091)

  - Thunderbird's update mechanism allowed a medium-integrity user process to interfere with the SYSTEM-level     updater by manipulating the file-locking behavior. By injecting code into the user-privileged process, an     attacker could bypass intended access controls, allowing SYSTEM-level file operations on paths controlled     by a non-privileged user and enabling privilege escalation. (CVE-2025-2817)

  - Modification of specific WebGL shader attributes could trigger an out-of-bounds read, which, when chained     with other vulnerabilities, could be used to escalate privileges. This bug only affects Thunderbird for     macOS. Other versions of Thunderbird are unaffected. (CVE-2025-4082)

  - A process isolation vulnerability in Thunderbird stemmed from improper handling of javascript: URIs, which     could allow content to execute in the top-level document's process instead of the intended frame,     potentially enabling a sandbox escape. (CVE-2025-4083)

  - An attacker with control over a content process could potentially leverage the privileged UITour actor to     leak sensitive information or escalate privileges. (CVE-2025-4085)

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 Firefox ESR installed on the remote Windows host is prior to 128.10. It is, therefore, affected by multiple vulnerabilities as referenced in the mfsa2025-29 advisory.

  - Memory safety bugs present in Firefox 137, Thunderbird 137, Firefox ESR 128.9, and Thunderbird 128.9. Some     of these bugs showed evidence of memory corruption and we presume that with enough effort some of these     could have been exploited to run arbitrary code. (CVE-2025-4091)

  - Mozilla Firefox's update mechanism allowed a medium-integrity user process to interfere with the SYSTEM-     level updater by manipulating the file-locking behavior. By injecting code into the user-privileged     process, an attacker could bypass intended access controls, allowing SYSTEM-level file operations on paths     controlled by a non-privileged user and enabling privilege escalation. (CVE-2025-2817)

  - Modification of specific WebGL shader attributes could trigger an out-of-bounds read, which, when chained     with other vulnerabilities, could be used to escalate privileges. This bug only affects Firefox for macOS.
    Other versions of Firefox are unaffected. (CVE-2025-4082)

  - A process isolation vulnerability in Firefox stemmed from improper handling of javascript: URIs, which     could allow content to execute in the top-level document's process instead of the intended frame,     potentially enabling a sandbox escape. (CVE-2025-4083)

  - Due to insufficient escaping of the special characters 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-2025-4084)

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 Firefox ESR installed on the remote Windows host is prior to 115.23. It is, therefore, affected by multiple vulnerabilities as referenced in the mfsa2025-30 advisory.

  - Modification of specific WebGL shader attributes could trigger an out-of-bounds read, which, when chained     with other vulnerabilities, could be used to escalate privileges. This bug only affects Firefox for macOS.
    Other versions of Firefox are unaffected. (CVE-2025-4082)

  - Mozilla Firefox's update mechanism allowed a medium-integrity user process to interfere with the SYSTEM-     level updater by manipulating the file-locking behavior. By injecting code into the user-privileged     process, an attacker could bypass intended access controls, allowing SYSTEM-level file operations on paths     controlled by a non-privileged user and enabling privilege escalation. (CVE-2025-2817)

  - A process isolation vulnerability in Firefox stemmed from improper handling of javascript: URIs, which     could allow content to execute in the top-level document's process instead of the intended frame,     potentially enabling a sandbox escape. (CVE-2025-4083)

  - 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-2025-4084)

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-2025-4797 advisory.

    [128.10.0-1.0.1]
    - Fix prefs for new nss [Orabug: 37079820]
    - Add Oracle prefs file
    - Force use of gcc-toolset-13 due to clang dependency

    [128.10.0]
    - Add OpenELA debranding

    [128.10.0-1]
    - Update to 128.10.0 build1

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-2025:7544 advisory.

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

    Security Fix(es):

    * firefox: thunderbird: Privilege escalation in Firefox Updater (CVE-2025-2817)

    * firefox: thunderbird: Unsafe attribute access during XPath parsing (CVE-2025-4087)

    * firefox: thunderbird: Process isolation bypass using javascript: URI links in cross-origin frames     (CVE-2025-4083)

    * firefox: thunderbird: Memory safety bugs fixed in Firefox 138, Thunderbird 138, Firefox ESR 128.10, and     Thunderbird 128.10 (CVE-2025-4091)

    * firefox: thunderbird: Memory safety bug fixed in Firefox ESR 128.10 and Thunderbird 128.10     (CVE-2025-4093)

    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-2025:7545 advisory.

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

    Security Fix(es):

    * firefox: thunderbird: Privilege escalation in Firefox Updater (CVE-2025-2817)

    * firefox: thunderbird: Unsafe attribute access during XPath parsing (CVE-2025-4087)

    * firefox: thunderbird: Process isolation bypass using javascript: URI links in cross-origin frames     (CVE-2025-4083)

    * firefox: thunderbird: Memory safety bugs fixed in Firefox 138, Thunderbird 138, Firefox ESR 128.10, and     Thunderbird 128.10 (CVE-2025-4091)

    * firefox: thunderbird: Memory safety bug fixed in Firefox ESR 128.10 and Thunderbird 128.10     (CVE-2025-4093)

    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-2025:7543 advisory.

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

    Security Fix(es):

    * firefox: thunderbird: Privilege escalation in Firefox Updater (CVE-2025-2817)

    * firefox: thunderbird: Unsafe attribute access during XPath parsing (CVE-2025-4087)

    * firefox: thunderbird: Process isolation bypass using javascript: URI links in cross-origin frames     (CVE-2025-4083)

    * firefox: thunderbird: Memory safety bugs fixed in Firefox 138, Thunderbird 138, Firefox ESR 128.10, and     Thunderbird 128.10 (CVE-2025-4091)

    * firefox: thunderbird: Memory safety bug fixed in Firefox ESR 128.10 and Thunderbird 128.10     (CVE-2025-4093)

    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 AlmaLinux 8 host has a package installed that is affected by multiple vulnerabilities as referenced in the ALSA-2025:4458 advisory.

    * firefox: thunderbird: Privilege escalation in Firefox Updater (CVE-2025-2817)
      * firefox: thunderbird: Unsafe attribute access during XPath parsing (CVE-2025-4087)
      * firefox: thunderbird: Process isolation bypass using javascript: URI links in cross-origin frames     (CVE-2025-4083)
      * firefox: thunderbird: Memory safety bugs fixed in Firefox 138, Thunderbird 138, Firefox ESR 128.10,     and Thunderbird 128.10 (CVE-2025-4091)
      * firefox: thunderbird: Memory safety bug fixed in Firefox ESR 128.10 and Thunderbird 128.10     (CVE-2025-4093)

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 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-2025:1506-1 advisory.

    Mozilla Thunderbird ESR 128.10 update (bsc#1241621):

    - CVE-2025-4082: WebGL shader attribute memory corruption in Thunderbird for macOS.
    - CVE-2025-4087: Unsafe attribute access during XPath parsing.
    - CVE-2025-4093: Memory safety bug fixed in Firefox ESR 128.10 and Thunderbird.
    - CVE-2025-4091: Memory safety bugs fixed in Firefox 138, Thunderbird 138, Firefox ESR 128.10, and     Thunderbird 128.10.
    - CVE-2025-4083: Process isolation bypass using 'javascript:' URI links in cross-origin frames.
    - CVE-2025-4084: Potential local code execution in 'copy as cURL' command.
    - CVE-2025-2817: Privilege escalation in Thunderbird Updater.

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 Fedora 42 host has a package installed that is affected by multiple vulnerabilities as referenced in the FEDORA-2025-e1bb9ed986 advisory.

    Update to 128.10.0

    * https://www.thunderbird.net/en-US/thunderbird/128.10.0esr/releasenotes/

Tenable has extracted the preceding description block directly from the Fedora 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
236857	AlmaLinux 9 : thunderbird (ALSA-2025:4460)	Nessus	Alma Linux Local Security Checks	5/16/2025	5/16/2025	critical
237851	RHEL 10 : firefox (RHSA-2025:7506)	Nessus	Red Hat Local Security Checks	6/5/2025	6/5/2025	critical
234927	Mozilla Thunderbird < 138.0	Nessus	MacOS X Local Security Checks	4/29/2025	5/16/2025	high
234928	Mozilla Firefox ESR < 128.10	Nessus	Windows	4/29/2025	5/22/2025	high
234930	Mozilla Firefox ESR < 115.23	Nessus	Windows	4/29/2025	5/22/2025	high
235785	Oracle Linux 8 : thunderbird (ELSA-2025-4797)	Nessus	Oracle Linux Local Security Checks	5/13/2025	5/16/2025	critical
235918	RHEL 8 : firefox (RHSA-2025:7544)	Nessus	Red Hat Local Security Checks	5/14/2025	6/5/2025	critical
235920	RHEL 8 : firefox (RHSA-2025:7545)	Nessus	Red Hat Local Security Checks	5/14/2025	6/5/2025	critical
235928	RHEL 8 : firefox (RHSA-2025:7543)	Nessus	Red Hat Local Security Checks	5/14/2025	6/5/2025	critical
236849	AlmaLinux 8 : firefox (ALSA-2025:4458)	Nessus	Alma Linux Local Security Checks	5/16/2025	5/16/2025	critical
235643	SUSE SLED15 / SLES15 / openSUSE 15 Security Update : MozillaThunderbird (SUSE-SU-2025:1506-1)	Nessus	SuSE Local Security Checks	5/9/2025	5/10/2025	critical
241297	Fedora 42 : thunderbird (2025-e1bb9ed986)	Nessus	Fedora Local Security Checks	7/3/2025	7/3/2025	critical

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