Debian dsa-6229 : thunderbird - security update

critical Nessus Plugin ID 310182

Synopsis

The remote Debian host is missing one or more security-related updates.

Description

The remote Debian 12 / 13 host has packages installed that are affected by multiple vulnerabilities as referenced in the dsa-6229 advisory.

- ------------------------------------------------------------------------- Debian Security Advisory DSA-6229-1 [email protected] https://www.debian.org/security/ Moritz Muehlenhoff April 24, 2026 https://www.debian.org/security/faq
- -------------------------------------------------------------------------

Package : thunderbird CVE ID : CVE-2026-6746 CVE-2026-6747 CVE-2026-6748 CVE-2026-6749 CVE-2026-6750 CVE-2026-6751 CVE-2026-6752 CVE-2026-6753 CVE-2026-6754 CVE-2026-6757 CVE-2026-6761 CVE-2026-6762 CVE-2026-6763 CVE-2026-6764 CVE-2026-6765 CVE-2026-6766 CVE-2026-6767 CVE-2026-6769 CVE-2026-6770 CVE-2026-6771 CVE-2026-6772 CVE-2026-6776 CVE-2026-6785 CVE-2026-6786

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

For the oldstable distribution (bookworm), these problems have been fixed in version 1:140.10.0esr-1~deb12u1.

For the stable distribution (trixie), these problems have been fixed in version 1:140.10.0esr-1~deb13u1.

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 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: [email protected]

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.

Solution

Upgrade the thunderbird packages.

Plugin Details

Severity: Critical

ID: 310182

File Name: debian_DSA-6229.nasl

Version: 1.1

Type: Local

Agent: unix

Family: Debian Local Security Checks

Published: 4/24/2026

Updated: 4/24/2026

Supported Sensors: Nessus Agent, Continuous Assessment, Nessus

Risk Information

VPR

Risk Factor: Medium

Score: 6.7

CVSS v2

Risk Factor: Critical

Base Score: 10

Temporal Score: 7.4

Vector: CVSS2#AV:N/AC:L/Au:N/C:C/I:C/A:C

CVSS Score Source: CVE-2026-6771

CVSS v3

Risk Factor: Critical

Base Score: 9.8

Temporal Score: 8.5

Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Temporal Vector: CVSS:3.0/E:U/RL:O/RC:C

Vulnerability Information

CPE: p-cpe:/a:debian:debian_linux:thunderbird-l10n-uz, p-cpe:/a:debian:debian_linux:thunderbird-l10n-ga-ie, p-cpe:/a:debian:debian_linux:thunderbird-l10n-rm, p-cpe:/a:debian:debian_linux:thunderbird-l10n-cak, p-cpe:/a:debian:debian_linux:thunderbird-l10n-af, p-cpe:/a:debian:debian_linux:thunderbird-l10n-en-ca, p-cpe:/a:debian:debian_linux:thunderbird-l10n-es-es, p-cpe:/a:debian:debian_linux:thunderbird-l10n-kab, p-cpe:/a:debian:debian_linux:thunderbird-l10n-nn-no, p-cpe:/a:debian:debian_linux:thunderbird-l10n-pl, p-cpe:/a:debian:debian_linux:thunderbird-l10n-ru, p-cpe:/a:debian:debian_linux:thunderbird-l10n-hu, p-cpe:/a:debian:debian_linux:thunderbird-l10n-sq, p-cpe:/a:debian:debian_linux:thunderbird-l10n-fy-nl, p-cpe:/a:debian:debian_linux:thunderbird-l10n-hr, p-cpe:/a:debian:debian_linux:thunderbird-l10n-zh-cn, cpe:/o:debian:debian_linux:12.0, p-cpe:/a:debian:debian_linux:thunderbird-l10n-zh-tw, p-cpe:/a:debian:debian_linux:thunderbird-l10n-vi, p-cpe:/a:debian:debian_linux:thunderbird-l10n-pt-pt, p-cpe:/a:debian:debian_linux:thunderbird-l10n-th, p-cpe:/a:debian:debian_linux:thunderbird-l10n-sr, p-cpe:/a:debian:debian_linux:thunderbird, p-cpe:/a:debian:debian_linux:thunderbird-l10n-ast, p-cpe:/a:debian:debian_linux:thunderbird-l10n-ja, p-cpe:/a:debian:debian_linux:thunderbird-l10n-sl, p-cpe:/a:debian:debian_linux:thunderbird-l10n-tr, p-cpe:/a:debian:debian_linux:thunderbird-l10n-en-gb, p-cpe:/a:debian:debian_linux:thunderbird-l10n-bg, p-cpe:/a:debian:debian_linux:thunderbird-l10n-ar, p-cpe:/a:debian:debian_linux:thunderbird-l10n-gl, p-cpe:/a:debian:debian_linux:thunderbird-l10n-lv, p-cpe:/a:debian:debian_linux:thunderbird-l10n-sk, p-cpe:/a:debian:debian_linux:thunderbird-l10n-el, p-cpe:/a:debian:debian_linux:thunderbird-l10n-fi, cpe:/o:debian:debian_linux:13.0, p-cpe:/a:debian:debian_linux:thunderbird-l10n-de, p-cpe:/a:debian:debian_linux:thunderbird-l10n-fr, p-cpe:/a:debian:debian_linux:thunderbird-l10n-it, p-cpe:/a:debian:debian_linux:thunderbird-l10n-pt-br, p-cpe:/a:debian:debian_linux:thunderbird-l10n-lt, p-cpe:/a:debian:debian_linux:thunderbird-l10n-nb-no, p-cpe:/a:debian:debian_linux:thunderbird-l10n-hsb, p-cpe:/a:debian:debian_linux:thunderbird-l10n-da, p-cpe:/a:debian:debian_linux:thunderbird-l10n-is, p-cpe:/a:debian:debian_linux:thunderbird-l10n-ca, p-cpe:/a:debian:debian_linux:thunderbird-l10n-nl, p-cpe:/a:debian:debian_linux:thunderbird-l10n-cs, p-cpe:/a:debian:debian_linux:thunderbird-l10n-pa-in, p-cpe:/a:debian:debian_linux:thunderbird-l10n-ro, p-cpe:/a:debian:debian_linux:thunderbird-l10n-uk, p-cpe:/a:debian:debian_linux:thunderbird-l10n-es-ar, p-cpe:/a:debian:debian_linux:thunderbird-l10n-he, p-cpe:/a:debian:debian_linux:thunderbird-l10n-ko, p-cpe:/a:debian:debian_linux:thunderbird-l10n-all, p-cpe:/a:debian:debian_linux:thunderbird-l10n-eu, p-cpe:/a:debian:debian_linux:thunderbird-l10n-et, p-cpe:/a:debian:debian_linux:thunderbird-l10n-gd, p-cpe:/a:debian:debian_linux:thunderbird-l10n-es-mx, p-cpe:/a:debian:debian_linux:thunderbird-l10n-be, p-cpe:/a:debian:debian_linux:thunderbird-l10n-ms, p-cpe:/a:debian:debian_linux:thunderbird-l10n-br, p-cpe:/a:debian:debian_linux:thunderbird-l10n-kk, p-cpe:/a:debian:debian_linux:thunderbird-l10n-id, p-cpe:/a:debian:debian_linux:thunderbird-l10n-ka, p-cpe:/a:debian:debian_linux:thunderbird-l10n-hy-am, p-cpe:/a:debian:debian_linux:thunderbird-l10n-dsb, p-cpe:/a:debian:debian_linux:thunderbird-l10n-sv-se, p-cpe:/a:debian:debian_linux:thunderbird-l10n-cy

Required KB Items: Host/local_checks_enabled, Host/Debian/release, Host/Debian/dpkg-l

Exploit Ease: No known exploits are available

Patch Publication Date: 4/24/2026

Vulnerability Publication Date: 4/21/2026

Reference Information

CVE: CVE-2026-6746, CVE-2026-6747, CVE-2026-6748, CVE-2026-6749, CVE-2026-6750, CVE-2026-6751, CVE-2026-6752, CVE-2026-6753, CVE-2026-6754, CVE-2026-6757, CVE-2026-6761, CVE-2026-6762, CVE-2026-6763, CVE-2026-6764, CVE-2026-6765, CVE-2026-6766, CVE-2026-6767, CVE-2026-6769, CVE-2026-6770, CVE-2026-6771, CVE-2026-6772, CVE-2026-6776, CVE-2026-6785, CVE-2026-6786

IAVA: 2026-A-0390

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