The remote Fedora 40 host has a package installed that is affected by multiple vulnerabilities as referenced in the FEDORA-2025-4b50cd66a5 advisory.

    Update to 128.8.0

    * https://www.mozilla.org/en-US/security/advisories/mfsa2025-18/
    * https://www.thunderbird.net/en-US/thunderbird/128.8.0esr/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.

The remote Redhat Enterprise Linux 8 host has a package installed that is affected by multiple vulnerabilities as referenced in the RHSA-2025:2485 advisory.

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

    Security Fix(es):

    * firefox: Use-after-free in WebTransportChild (CVE-2025-1931)

    * firefox: AudioIPC StreamData could trigger a use-after-free in the Browser process (CVE-2025-1930)

    * firefox: Unexpected GC during RegExp bailout processing (CVE-2025-1934)

    * firefox: Clickjacking the registerProtocolHandler info-bar  Reporter (CVE-2025-1935)

    * firefox: thunderbird: Memory safety bugs fixed in Firefox 136, Thunderbird 136, Firefox ESR 128.8, and     Thunderbird 128.8 (CVE-2025-1938)

    * firefox: JIT corruption of WASM i32 return values on 64-bit CPUs (CVE-2025-1933)

    * firefox: thunderbird: Memory safety bugs fixed in Firefox 136, Thunderbird 136, Firefox ESR 115.21,     Firefox ESR 128.8, and Thunderbird 128.8 (CVE-2025-1937)

    * firefox: Inconsistent comparator in XSLT sorting led to out-of-bounds access (CVE-2025-1932)

    * firefox: Adding %00 and a fake extension to a jar: URL changed the interpretation of the contents     (CVE-2025-1936)

    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 7 host has a package installed that is affected by multiple vulnerabilities as referenced in the RHSA-2025:2699 advisory.

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

    Security Fix(es):

    * firefox: Use-after-free in WebTransportChild (CVE-2025-1931)

    * firefox: AudioIPC StreamData could trigger a use-after-free in the Browser process (CVE-2025-1930)

    * firefox: Unexpected GC during RegExp bailout processing (CVE-2025-1934)

    * firefox: Clickjacking the registerProtocolHandler info-bar  Reporter (CVE-2025-1935)

    * firefox: thunderbird: Memory safety bugs fixed in Firefox 136, Thunderbird 136, Firefox ESR 128.8, and     Thunderbird 128.8 (CVE-2025-1938)

    * firefox: JIT corruption of WASM i32 return values on 64-bit CPUs (CVE-2025-1933)

    * firefox: thunderbird: Memory safety bugs fixed in Firefox 136, Thunderbird 136, Firefox ESR 115.21,     Firefox ESR 128.8, and Thunderbird 128.8 (CVE-2025-1937)

    * firefox: Inconsistent comparator in XSLT sorting led to out-of-bounds access (CVE-2025-1932)

    * firefox: Adding %00 and a fake extension to a jar: URL changed the interpretation of the contents     (CVE-2025-1936)

    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-2025:2480 advisory.

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

    Security Fix(es):

    * firefox: Use-after-free in WebTransportChild (CVE-2025-1931)

    * firefox: AudioIPC StreamData could trigger a use-after-free in the Browser process (CVE-2025-1930)

    * firefox: Unexpected GC during RegExp bailout processing (CVE-2025-1934)

    * firefox: Clickjacking the registerProtocolHandler info-bar  Reporter (CVE-2025-1935)

    * firefox: thunderbird: Memory safety bugs fixed in Firefox 136, Thunderbird 136, Firefox ESR 128.8, and     Thunderbird 128.8 (CVE-2025-1938)

    * firefox: JIT corruption of WASM i32 return values on 64-bit CPUs (CVE-2025-1933)

    * firefox: thunderbird: Memory safety bugs fixed in Firefox 136, Thunderbird 136, Firefox ESR 115.21,     Firefox ESR 128.8, and Thunderbird 128.8 (CVE-2025-1937)

    * firefox: Inconsistent comparator in XSLT sorting led to out-of-bounds access (CVE-2025-1932)

    * firefox: Adding %00 and a fake extension to a jar: URL changed the interpretation of the contents     (CVE-2025-1936)

    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-2025:2481 advisory.

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

    Security Fix(es):

    * firefox: Use-after-free in WebTransportChild (CVE-2025-1931)

    * firefox: AudioIPC StreamData could trigger a use-after-free in the Browser process (CVE-2025-1930)

    * firefox: Unexpected GC during RegExp bailout processing (CVE-2025-1934)

    * firefox: Clickjacking the registerProtocolHandler info-bar  Reporter (CVE-2025-1935)

    * firefox: thunderbird: Memory safety bugs fixed in Firefox 136, Thunderbird 136, Firefox ESR 128.8, and     Thunderbird 128.8 (CVE-2025-1938)

    * firefox: JIT corruption of WASM i32 return values on 64-bit CPUs (CVE-2025-1933)

    * firefox: thunderbird: Memory safety bugs fixed in Firefox 136, Thunderbird 136, Firefox ESR 115.21,     Firefox ESR 128.8, and Thunderbird 128.8 (CVE-2025-1937)

    * firefox: Inconsistent comparator in XSLT sorting led to out-of-bounds access (CVE-2025-1932)

    * firefox: Adding %00 and a fake extension to a jar: URL changed the interpretation of the contents     (CVE-2025-1936)

    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 128.8.1-1. It is, therefore, affected by multiple vulnerabilities as referenced in the ALAS2-2025-2807 advisory.

    Requests initiated through reader mode did not properly omit cookies with a SameSite attribute. This     vulnerability affects Thunderbird < 91.9, Firefox ESR < 91.9, and Firefox < 100. (CVE-2022-29912)

    The parent process would not properly check whether the Speech Synthesis feature is enabled, when     receiving instructions from a child process. This vulnerability affects Thunderbird < 91.9.
    (CVE-2022-29913)

    In resizeToAtLeast of SkRegion.cpp, there is a possible out of bounds write due to an integer overflow.
    This could lead to local escalation of privilege with no additional execution privileges needed. User     interaction is not needed for exploitation. (CVE-2024-43097)

    It was possible to cause a use-after-free in the content process side of a WebTransport connection,     leading to a potentially exploitable crash. This vulnerability affects Firefox < 136, Firefox ESR <     115.21, Firefox ESR < 128.8, Thunderbird < 136, and Thunderbird < 128.8. (CVE-2025-1931)

    An inconsistent comparator in xslt/txNodeSorter could have resulted in potentially exploitable out-of-     bounds access. Only affected version 122 and later. This vulnerability affects Firefox < 136, Firefox ESR     < 128.8, Thunderbird < 136, and Thunderbird < 128.8. (CVE-2025-1932)

    On 64-bit CPUs, when the JIT compiles WASM i32 return values they can pick up bits from left over memory.
    This can potentially cause them to be treated as a different type. This vulnerability affects Firefox <     136, Firefox ESR < 115.21, Firefox ESR < 128.8, Thunderbird < 136, and Thunderbird < 128.8.
    (CVE-2025-1933)

    It was possible to interrupt the processing of a RegExp bailout and run additional JavaScript, potentially     triggering garbage collection when the engine was not expecting it. This vulnerability affects Firefox <     136, Firefox ESR < 128.8, Thunderbird < 136, and Thunderbird < 128.8. (CVE-2025-1934)

    A web page could trick a user into setting that site as the default handler for a custom URL protocol.
    This vulnerability affects Firefox < 136, Firefox ESR < 128.8, Thunderbird < 136, and Thunderbird < 128.8.
    (CVE-2025-1935)

    jar: URLs retrieve local file content packaged in a ZIP archive. The null and everything after it was     ignored when retrieving the content from the archive, but the fake extension after the null was used to     determine the type of content. This could have been used to hide code in a web extension disguised as     something else like an image. This vulnerability affects Firefox < 136, Firefox ESR < 128.8, Thunderbird <     136, and Thunderbird < 128.8. (CVE-2025-1936)

    Memory safety bugs present in Firefox 135, Thunderbird 135, Firefox ESR 115.20, Firefox ESR 128.7, and     Thunderbird 128.7. 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. This vulnerability affects Firefox <     136, Firefox ESR < 115.21, Firefox ESR < 128.8, Thunderbird < 136, and Thunderbird < 128.8.
    (CVE-2025-1937)

    Memory safety bugs present in Firefox 135, Thunderbird 135, Firefox ESR 128.7, and Thunderbird 128.7. 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. This vulnerability affects Firefox < 136, Firefox ESR <     128.8, Thunderbird < 136, and Thunderbird < 128.8. (CVE-2025-1938)

    When requesting an OpenPGP key from a WKD server, an incorrect padding size was used and a network     observer could have learned the length of the requested email address. This vulnerability affects     Thunderbird < 136 and Thunderbird < 128.8. (CVE-2025-26695)

    Certain crafted MIME email messages that claimed to contain an encrypted OpenPGP message, which instead     contained an OpenPGP signed message, were wrongly shown as being encrypted. This vulnerability affects     Thunderbird < 136 and Thunderbird < 128.8. (CVE-2025-26696)

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.

ID	Name	Product	Family	Published	Updated	Severity
232725	Fedora 40 : thunderbird (2025-4b50cd66a5)	Nessus	Fedora Local Security Checks	3/14/2025	4/3/2025	high
232767	RHEL 8 : firefox (RHSA-2025:2485)	Nessus	Red Hat Local Security Checks	3/15/2025	6/5/2025	high
232796	RHEL 7 : firefox (RHSA-2025:2699)	Nessus	Red Hat Local Security Checks	3/15/2025	6/5/2025	high
232798	RHEL 9 : firefox (RHSA-2025:2480)	Nessus	Red Hat Local Security Checks	3/15/2025	6/5/2025	high
232820	RHEL 9 : firefox (RHSA-2025:2481)	Nessus	Red Hat Local Security Checks	3/15/2025	6/5/2025	high
233716	Amazon Linux 2 : thunderbird (ALAS-2025-2807)	Nessus	Amazon Linux Local Security Checks	4/1/2025	4/3/2025	medium

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