The remote Debian 12 host has packages installed that are affected by multiple vulnerabilities as referenced in the dsa-5950 advisory.

    - -------------------------------------------------------------------------     Debian Security Advisory DSA-5950-1                   security@debian.org     https://www.debian.org/security/                       Moritz Muehlenhoff     June 25, 2025                         https://www.debian.org/security/faq
    - -------------------------------------------------------------------------

    Package        : firefox-esr     CVE ID         : CVE-2025-6424 CVE-2025-6425 CVE-2025-6429 CVE-2025-6430

    Multiple security issues have been found in the Mozilla Firefox     web browser, which could potentially result in the execution     of arbitrary code.

    For the stable distribution (bookworm), these problems have been fixed in     version 128.12.0esr-1~deb12u1.

    We recommend that you upgrade your firefox-esr packages.

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

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

    Mailing list: debian-security-announce@lists.debian.org

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 dsa-5950 : firefox-esr - security update

critical Nessus Plugin ID 240561

Version 1.1