The remote Debian 11 host has packages installed that are affected by multiple vulnerabilities as referenced in the dla-4253 advisory.

    - -------------------------------------------------------------------------     Debian LTS Advisory DLA-4253-1                debian-lts@lists.debian.org     https://www.debian.org/lts/security/               Emilio Pozuelo Monfort     July 27, 2025                                 https://wiki.debian.org/LTS
    - -------------------------------------------------------------------------

    Package        : thunderbird     Version        : 1:128.13.0esr-1~deb11u1     CVE ID         : CVE-2025-8027 CVE-2025-8028 CVE-2025-8029 CVE-2025-8030                      CVE-2025-8031 CVE-2025-8032 CVE-2025-8033 CVE-2025-8034                      CVE-2025-8035

    Multiple security issues were discovered in Thunderbird, which could     result in the execution of arbitrary code.

    For Debian 11 bullseye, these problems have been fixed in version     1:128.13.0esr-1~deb11u1.

    We recommend that you upgrade your thunderbird packages.

    For the detailed security status of thunderbird please refer to     its security tracker page at:
    https://security-tracker.debian.org/tracker/thunderbird

    Further information about Debian LTS security advisories, how to apply     these updates to your system and frequently asked questions can be     found at: https://wiki.debian.org/LTS

Tenable has extracted the preceding description block directly from the Debian security advisory.

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

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Debian dla-4253 : thunderbird - security update

critical Nessus Plugin ID 242879

Version 1.1