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 version of FreeBSD installed on the remote host is prior to tested version. It is, therefore, affected by a vulnerability as referenced in the 201cccc1-4a01-11f0-b0f8-b42e991fc52e advisory.

    security@mozilla.org reports:
    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.  This vulnerability affects             Firefox < 138, Firefox ESR < 128.10, Firefox ESR < 115.23,             Thunderbird < 138, and Thunderbird < 128.10.

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 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
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
240057	FreeBSD : Mozilla -- control access bypass (201cccc1-4a01-11f0-b0f8-b42e991fc52e)	Nessus	FreeBSD Local Security Checks	6/16/2025	6/16/2025	high
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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