The version of Firefox installed on the remote macOS or Mac OS X host is prior to 141.0. It is, therefore, affected by multiple vulnerabilities as referenced in the mfsa2025-56 advisory.

  - Memory safety bugs present in Firefox 140 and Thunderbird 140. 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-2025-8044)

  - On 64-bit platforms IonMonkey-JIT only wrote 32 bits of the 64-bit return value space on the stack.
    Baseline-JIT, however, read the entire 64 bits. (CVE-2025-8027)

  - On arm64, a WASM <code>brtable</code> instruction with a lot of entries could lead to the label being too     far from the instruction causing truncation and incorrect computation of the branch address.
    (CVE-2025-8028)

  - In the address bar, Firefox for Android truncated the display of URLs from the end instead of prioritizing     the origin. (CVE-2025-8041)

  - Firefox for Android allowed a sandboxed iframe without the <code>allow-downloads</code> attribute to start     downloads. (CVE-2025-8042)

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 141.0. It is, therefore, affected by multiple vulnerabilities as referenced in the mfsa2025-61 advisory.

  - Memory safety bugs present in Firefox 140 and Thunderbird 140. 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-2025-8044)

  - On 64-bit platforms IonMonkey-JIT only wrote 32 bits of the 64-bit return value space on the stack.
    Baseline-JIT, however, read the entire 64 bits. (CVE-2025-8027)

  - On arm64, a WASM <code>brtable</code> instruction with a lot of entries could lead to the label being too     far from the instruction causing truncation and incorrect computation of the branch address.
    (CVE-2025-8028)

  - Thunderbird executed <code>javascript:</code> URLs when used in <code>object</code> and <code>embed</code>     tags. (CVE-2025-8029)

  - Thunderbird cached CORS preflight responses across IP address changes. This allowed circumventing CORS     with DNS rebinding. (CVE-2025-8036)

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-firefox installed on the remote host is prior to 140.1.0esr. It is, therefore, affected by multiple vulnerabilities as referenced in the SSA:2025-203-01 advisory.

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

Tenable has extracted the preceding description block directly from the mozilla-firefox 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 140.1. It is, therefore, affected by multiple vulnerabilities as referenced in the mfsa2025-63 advisory.

  - Memory safety bugs present in Firefox ESR 140.0, Thunderbird ESR 140.0, Firefox 140 and Thunderbird 140.
    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-2025-8040)

  - Thunderbird ignored paths when checking the validity of navigations in a frame. (CVE-2025-8038)

  - On 64-bit platforms IonMonkey-JIT only wrote 32 bits of the 64-bit return value space on the stack.
    Baseline-JIT, however, read the entire 64 bits. (CVE-2025-8027)

  - On arm64, a WASM <code>brtable</code> instruction with a lot of entries could lead to the label being too     far from the instruction causing truncation and incorrect computation of the branch address.
    (CVE-2025-8028)

  - Thunderbird executed <code>javascript:</code> URLs when used in <code>object</code> and <code>embed</code>     tags. (CVE-2025-8029)

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 SLES12 host has packages installed that are affected by multiple vulnerabilities as referenced in the SUSE-SU-2025:02531-1 advisory.

    - Firefox Extended Support Release 140.1.0 ESR
      * MFSA-RESERVE-2025-1968423 (bmo#1968423)         JavaScript engine only wrote partial return value to stack
      * MFSA-RESERVE-2025-1971581 (bmo#1971581)         Large branch table could lead to truncated instruction
      * MFSA-RESERVE-2025-1928021 (bmo#1928021)         CSP does not block javascript: URLs on object and embed tags
      * MFSA-RESERVE-2025-1960834 (bmo#1960834)         DNS rebinding circumvents CORS
      * MFSA-RESERVE-2025-1964767 (bmo#1964767)         Nameless cookies shadow secure cookies
      * MFSA-RESERVE-2025-1968414 (bmo#1968414)         Potential user-assisted code execution in Copy as cURL         command
      * MFSA-RESERVE-2025-1971719 (bmo#1971719)         Incorrect URL stripping in CSP reports
      * MFSA-RESERVE-2025-1974407 (bmo#1974407)         XSLT documents could by-pass CSP
      * MFSA-RESERVE-2025-1808979 (bmo#1808979)         CSP frame-src was not correctly enforced for paths
      * MFSA-RESERVE-2025-1970997 (bmo#1970997)         Search terms persist in URL bar
      * MFSA-RESERVE-2025-1973990 (bmo#1973990)         Incorrect JavaScript state machine for generators
      * MFSA-RESERVE-2025-1 (bmo#1970422, bmo#1970422, bmo#1970422,         bmo#1970422)         Memory safety bugs fixed in Firefox ESR 115.26, Thunderbird         ESR 115.26, Firefox ESR 128.13, Firefox ESR 140.1,         Thunderbird ESR 140.1, Firefox 141 and Thunderbird 141
      * MFSA-RESERVE-2025-2 (bmo#1975058, bmo#1975058, bmo#1975998,         bmo#1975998)         Memory safety bugs fixed in Firefox ESR 140.1, Thunderbird         ESR 140.1, Firefox 141 and Thunderbird 141
      * MFSA-RESERVE-2025-3 (bmo#1975961, bmo#1975961, bmo#1975961)         Memory safety bugs fixed in Firefox ESR 128.13, Firefox ESR         140.1, Thunderbird ESR 140.1, Firefox 141 and Thunderbird 141

    Various security fixes MFSA 2025-59 (bsc#1246664):
    - CVE-2025-8027: JavaScript engine only wrote partial return value to stack
    - CVE-2025-8028: Large branch table could lead to truncated instruction
    - CVE-2025-8029: javascript: URLs executed on object and embed tags
    - CVE-2025-8036: DNS rebinding circumvents CORS
    - CVE-2025-8037: Nameless cookies shadow secure cookies
    - CVE-2025-8030: Potential user-assisted code execution in Copy as cURL command
    - CVE-2025-8031: Incorrect URL stripping in CSP reports
    - CVE-2025-8032: XSLT documents could bypass CSP
    - CVE-2025-8038: CSP frame-src was not correctly enforced for paths
    - CVE-2025-8039: Search terms persisted in URL bar
    - CVE-2025-8033: Incorrect JavaScript state machine for generators
    - CVE-2025-8034: Memory safety bugs fixed in Firefox ESR 115.26, Firefox ESR 128.13, Thunderbird ESR     128.13, Firefox ESR 140.1, Thunderbird ESR 140.1, Firefox 141 and Thunderbird 141
    - CVE-2025-8040: Memory safety bugs fixed in Firefox ESR 140.1, Thunderbird ESR 140.1, Firefox 141 and     Thunderbird 141
    - CVE-2025-8035: Memory safety bugs fixed in Firefox ESR 128.13, Thunderbird ESR 128.13, Firefox ESR     140.1, Thunderbird ESR 140.1, Firefox 141 and Thunderbird 141

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 Ubuntu 22.04 LTS host has packages installed that are affected by multiple vulnerabilities as referenced in the USN-7991-1 advisory.

    Multiple security issues were discovered in Thunderbird. If a user were tricked into opening a specially     crafted website in a browsing context, an attacker could potentially exploit these to cause a denial of     service, obtain sensitive information, bypass security restrictions, cross-site tracing, or execute     arbitrary code.

Tenable has extracted the preceding description block directly from the Ubuntu 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 5abc2187-685e-11f0-a12d-b42e991fc52e advisory.

    security@mozilla.org reports:
    Setting a nameless cookie with an equals sign in the               value shadowed other cookies. Even if the nameless cookie               was set over HTTP and the shadowed cookie included the               `Secure` attribute.

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 version of Thunderbird installed on the remote Windows host is prior to 140.1. It is, therefore, affected by multiple vulnerabilities as referenced in the mfsa2025-63 advisory.

  - Memory safety bugs present in Firefox ESR 140.0, Thunderbird ESR 140.0, Firefox 140 and Thunderbird 140.
    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-2025-8040)

  - Thunderbird ignored paths when checking the validity of navigations in a frame. (CVE-2025-8038)

  - On 64-bit platforms IonMonkey-JIT only wrote 32 bits of the 64-bit return value space on the stack.
    Baseline-JIT, however, read the entire 64 bits. (CVE-2025-8027)

  - On arm64, a WASM <code>brtable</code> instruction with a lot of entries could lead to the label being too     far from the instruction causing truncation and incorrect computation of the branch address.
    (CVE-2025-8028)

  - Thunderbird executed <code>javascript:</code> URLs when used in <code>object</code> and <code>embed</code>     tags. (CVE-2025-8029)

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-2025-81e513fb49 advisory.

    - Updated to latest upstream (141.0)

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 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-2025:02546-1 advisory.

    Update to Mozilla Thunderbird 140.1 (MFSA 2025-63) (bsc#1246664):

    - CVE-2025-8027: JavaScript engine only wrote partial return value to stack (bmo#1968423)
    - CVE-2025-8028: Large branch table could lead to truncated instruction (bmo#1971581)
    - CVE-2025-8029: javascript: URLs executed on object and embed tags (bmo#1928021)
    - CVE-2025-8036: DNS rebinding circumvents CORS (bmo#1960834)
    - CVE-2025-8037: Nameless cookies shadow secure cookies (bmo#1964767)
    - CVE-2025-8030: Potential user-assisted code execution in 'Copy as cURL' command (bmo#1968414)
    - CVE-2025-8031: Incorrect URL stripping in CSP reports (bmo#1971719)
    - CVE-2025-8032: XSLT documents could bypass CSP (bmo#1974407)
    - CVE-2025-8038: CSP frame-src was not correctly enforced for paths (bmo#1808979)
    - CVE-2025-8039: Search terms persisted in URL bar (bmo#1970997)
    - CVE-2025-8033: Incorrect JavaScript state machine for generators (bmo#1973990)
    - CVE-2025-8034: Memory safety bugs fixed in Firefox ESR 115.26, Firefox ESR 128.13, Thunderbird ESR     128.13, Firefox ESR 140.1, Thunderbird ESR 140.1, Firefox 141 and Thunderbird 141 (bmo#1970422,     bmo#1970422, bmo#1970422, bmo#1970422)
    - CVE-2025-8040: Memory safety bugs fixed in Firefox ESR 140.1, Thunderbird ESR 140.1, Firefox 141 and     Thunderbird 141 (bmo#1975058, bmo#1975058, bmo#1975998, bmo#1975998)
    - CVE-2025-8035: Memory safety bugs fixed in Firefox ESR 128.13, Thunderbird ESR 128.13, Firefox ESR     140.1, Thunderbird ESR 140.1, Firefox 141 and Thunderbird 141 (bmo#1975961, bmo#1975961, bmo#1975961)

    Update to Mozilla Thunderbird 140.0.1 (MFSA 2025-54) (bsc#1244670):

    - CVE-2025-6424: Use-after-free in FontFaceSet (bmo#1966423)
    - CVE-2025-6425: The WebCompat WebExtension shipped exposed a persistent UUID (bmo#1717672)
    - CVE-2025-6426: No warning when opening executable terminal files on macOS (bmo#1964385)
    - CVE-2025-6427: connect-src Content Security Policy restriction could be bypassed (bmo#1966927)
    - CVE-2025-6429: Incorrect parsing of URLs could have allowed embedding of youtube.com (bmo#1970658)
    - CVE-2025-6430: Content-Disposition header ignored when a file is included in an embed or object tag     (bmo#1971140)
    - CVE-2025-6432: DNS Requests leaked outside of a configured SOCKS proxy (bmo#1943804)
    - CVE-2025-6433: WebAuthn would allow a user to sign a challenge on a webpage with an invalid TLS     certificate (bmo#1954033)
    - CVE-2025-6434: HTTPS-Only exception screen lacked anti-clickjacking delay (bmo#1955182)
    - CVE-2025-6435: Save as in Devtools could download files without sanitizing the extension (bmo#1950056,     bmo#1961777)
    - CVE-2025-6436: Memory safety bugs fixed in Firefox 140 and Thunderbird 140 (bmo#1941377, bmo#1960948,     bmo#1966187, bmo#1966505, bmo#1970764)

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.

ID	名前	製品	ファミリー	公開日	更新日	深刻度
242556	Mozilla Firefox < 141.0	Nessus	MacOS X Local Security Checks	2025/7/22	2025/11/18	critical
242579	Mozilla Thunderbird < 141.0	Nessus	MacOS X Local Security Checks	2025/7/22	2026/1/21	critical
242583	Slackware Linux 15.0 / current mozilla-firefox Multiple Vulnerabilities (SSA:2025-203-01)	Nessus	Slackware Local Security Checks	2025/7/22	2025/7/22	high
242570	Mozilla Thunderbird < 140.1	Nessus	MacOS X Local Security Checks	2025/7/22	2026/1/21	critical
242953	SUSE SLES12: MozillaFirefox / MozillaFirefox-devel / etc (SUSE-SU-2025:02531-1)	Nessus	SuSE Local Security Checks	2025/7/29	2026/6/26	critical
297659	Ubuntu 22.04 LTS : Thunderbird vulnerabilities (USN-7991-1)	Nessus	Ubuntu Local Security Checks	2026/2/3	2026/2/24	medium
242927	FreeBSD : Mozilla -- cookie shadowing (5abc2187-685e-11f0-a12d-b42e991fc52e)	Nessus	FreeBSD Local Security Checks	2025/7/28	2026/1/21	critical
242569	Mozilla Thunderbird < 140.1	Nessus	Windows	2025/7/22	2026/1/21	critical
242599	Fedora 42 : firefox (2025-81e513fb49)	Nessus	Fedora Local Security Checks	2025/7/23	2025/8/5	critical
243222	SUSE SLED15: MozillaThunderbird / MozillaThunderbird-translations-common / etc (SUSE-SU-2025:02546-1)	Nessus	SuSE Local Security Checks	2025/7/31	2026/6/25	critical

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