The version of Thunderbird installed on the remote macOS or Mac OS X host is prior to 156.0. It is, therefore, affected by multiple vulnerabilities as referenced in the mfsa2026-94 advisory.

  - Privilege escalation in the Enterprise Policies component. This vulnerability was fixed in Firefox 156,     Firefox ESR 153.3, and Thunderbird 156. (CVE-2026-92073)

  - A maliciously constructed mail header could lead to multiple fields being parsed as one, or potential     memory safety violations. (CVE-2026-92238)

  - A maliciously constructed IMAP line could cause an out-of-bounds buffer read. (CVE-2026-92239)

  - A malicious or compromised IMAP server can trigger an out-of-bounds read in the IMAP response parser by     sending an untagged ' ID' response, crashing Thunderbird. The affected parsing path is reachable before     authentication. (CVE-2026-92240)

  - Use-after-free in the Audio/Video: Web Codecs component. This vulnerability was fixed in Firefox 156,     Firefox ESR 140.16, Firefox ESR 153.3, Thunderbird 156, and Thunderbird 140.16. (CVE-2026-92005)

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 140.16. It is, therefore, affected by multiple vulnerabilities as referenced in the mfsa2026-95 advisory.

  - Privilege escalation due to incorrect boundary conditions in the Graphics: WebRender component. This     vulnerability was fixed in Firefox 156, Firefox ESR 115.41, Firefox ESR 140.16, Firefox ESR 153.3,     Thunderbird 156, and Thunderbird 140.16. (CVE-2026-92020)

  - A maliciously constructed mail header could lead to multiple fields being parsed as one, or potential     memory safety violations. (CVE-2026-92238)

  - A maliciously constructed IMAP line could cause an out-of-bounds buffer read. (CVE-2026-92239)

  - A malicious or compromised IMAP server can trigger an out-of-bounds read in the IMAP response parser by     sending an untagged ' ID' response, crashing Thunderbird. The affected parsing path is reachable before     authentication. (CVE-2026-92240)

  - Use-after-free in the Audio/Video: Web Codecs component. This vulnerability was fixed in Firefox 156,     Firefox ESR 140.16, Firefox ESR 153.3, Thunderbird 156, and Thunderbird 140.16. (CVE-2026-92005)

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 Windows host is prior to 140.16. It is, therefore, affected by multiple vulnerabilities as referenced in the mfsa2026-95 advisory.

  - Privilege escalation due to incorrect boundary conditions in the Graphics: WebRender component. This     vulnerability was fixed in Firefox 156, Firefox ESR 115.41, Firefox ESR 140.16, Firefox ESR 153.3,     Thunderbird 156, and Thunderbird 140.16. (CVE-2026-92020)

  - A maliciously constructed mail header could lead to multiple fields being parsed as one, or potential     memory safety violations. (CVE-2026-92238)

  - A maliciously constructed IMAP line could cause an out-of-bounds buffer read. (CVE-2026-92239)

  - A malicious or compromised IMAP server can trigger an out-of-bounds read in the IMAP response parser by     sending an untagged ' ID' response, crashing Thunderbird. The affected parsing path is reachable before     authentication. (CVE-2026-92240)

  - Use-after-free in the Audio/Video: Web Codecs component. This vulnerability was fixed in Firefox 156,     Firefox ESR 140.16, Firefox ESR 153.3, Thunderbird 156, and Thunderbird 140.16. (CVE-2026-92005)

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 Windows host is prior to 153.3. It is, therefore, affected by multiple vulnerabilities as referenced in the mfsa2026-96 advisory.

  - Privilege escalation in the Enterprise Policies component. This vulnerability was fixed in Firefox 156,     Firefox ESR 153.3, Thunderbird 156, and Thunderbird 153.3. (CVE-2026-92073)

  - A maliciously constructed mail header could lead to multiple fields being parsed as one, or potential     memory safety violations. (CVE-2026-92238)

  - A maliciously constructed IMAP line could cause an out-of-bounds buffer read. (CVE-2026-92239)

  - A malicious or compromised IMAP server can trigger an out-of-bounds read in the IMAP response parser by     sending an untagged ' ID' response, crashing Thunderbird. The affected parsing path is reachable before     authentication. (CVE-2026-92240)

  - Use-after-free in the Audio/Video: Web Codecs component. This vulnerability was fixed in Firefox 156,     Firefox ESR 140.16, Firefox ESR 153.3, Thunderbird 156, Thunderbird 140.16, and Thunderbird 153.3.
    (CVE-2026-92005)

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 153.3. It is, therefore, affected by multiple vulnerabilities as referenced in the mfsa2026-96 advisory.

  - Privilege escalation in the Enterprise Policies component. This vulnerability was fixed in Firefox 156,     Firefox ESR 153.3, Thunderbird 156, and Thunderbird 153.3. (CVE-2026-92073)

  - A maliciously constructed mail header could lead to multiple fields being parsed as one, or potential     memory safety violations. (CVE-2026-92238)

  - A maliciously constructed IMAP line could cause an out-of-bounds buffer read. (CVE-2026-92239)

  - A malicious or compromised IMAP server can trigger an out-of-bounds read in the IMAP response parser by     sending an untagged ' ID' response, crashing Thunderbird. The affected parsing path is reachable before     authentication. (CVE-2026-92240)

  - Use-after-free in the Audio/Video: Web Codecs component. This vulnerability was fixed in Firefox 156,     Firefox ESR 140.16, Firefox ESR 153.3, Thunderbird 156, Thunderbird 140.16, and Thunderbird 153.3.
    (CVE-2026-92005)

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 Windows host is prior to 156.0. It is, therefore, affected by multiple vulnerabilities as referenced in the mfsa2026-94 advisory.

  - Privilege escalation in the Enterprise Policies component. This vulnerability was fixed in Firefox 156,     Firefox ESR 153.3, and Thunderbird 156. (CVE-2026-92073)

  - A maliciously constructed mail header could lead to multiple fields being parsed as one, or potential     memory safety violations. (CVE-2026-92238)

  - A maliciously constructed IMAP line could cause an out-of-bounds buffer read. (CVE-2026-92239)

  - A malicious or compromised IMAP server can trigger an out-of-bounds read in the IMAP response parser by     sending an untagged ' ID' response, crashing Thunderbird. The affected parsing path is reachable before     authentication. (CVE-2026-92240)

  - Use-after-free in the Audio/Video: Web Codecs component. This vulnerability was fixed in Firefox 156,     Firefox ESR 140.16, Firefox ESR 153.3, Thunderbird 156, and Thunderbird 140.16. (CVE-2026-92005)

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

ID	名称	产品	系列	发布时间	最近更新时间	严重程度
346176	Mozilla Thunderbird < 156.0	Nessus	MacOS X Local Security Checks	2026/9/16	2026/9/16	high
346178	Mozilla Thunderbird < 140.16	Nessus	MacOS X Local Security Checks	2026/9/16	2026/9/16	high
346177	Mozilla Thunderbird < 140.16	Nessus	Windows	2026/9/16	2026/9/16	high
346320	Mozilla Thunderbird < 153.3	Nessus	Windows	2026/9/16	2026/9/16	high
346319	Mozilla Thunderbird < 153.3	Nessus	MacOS X Local Security Checks	2026/9/16	2026/9/16	high
346179	Mozilla Thunderbird < 156.0	Nessus	Windows	2026/9/16	2026/9/16	high

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