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Debian dsa-6563 : mutt - security update

low Nessus Plugin ID 366332

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Synopsis

The remote Debian host is missing a security-related update.

Description

The remote Debian 13 host has a package installed that is affected by a vulnerability as referenced in the dsa-6563 advisory.

 - ------------------------------------------------------------------------- Debian Security Advisory DSA-6563-1 [email protected] https://www.debian.org/security/ Moritz Muehlenhoff October 15, 2026 https://www.debian.org/security/faq
 - -------------------------------------------------------------------------

 Package : mutt CVE ID : CVE-2026-107570

 It was discovered that incorrect parsing of Content-Type headers in the Mutt mail user agent could result in denial of service or potentially the execution of arbitrary code.

 For the stable distribution (trixie), this problem has been fixed in version 2.2.13-1+deb13u2.

 We recommend that you upgrade your mutt packages.

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

 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 this issue but has instead relied only on the application's self-reported version number.

Solution

Upgrade the mutt packages.

See Also

https://packages.debian.org/source/trixie/mutt

https://security-tracker.debian.org/tracker/CVE-2026-107570

https://security-tracker.debian.org/tracker/source-package/mutt

Plugin Details

Severity: Low

ID: 366332

File Name: debian_DSA-6563.nasl

Version: 1.1

Type: Local

Agent: unix

Published: 10/15/2026

Updated: 10/15/2026

Supported Sensors: Frictionless Assessment Agent, Nessus Agent, Agentless Assessment, Continuous Assessment, Tenable Cloud Security, Tenable Self-Hosted Container Security, Nessus

Risk Information

VPR

Risk Factor: Low

Score: 1.2

Percentile: 0.01

CVSS v2

Risk Factor: Low

Base Score: 1.2

Temporal Score: 0.9

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

CVSS Score Source: CVE-2026-107570

CVSS v3

Risk Factor: Low

Base Score: 2.5

Temporal Score: 2.2

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

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

Vulnerability Information

CPE: cpe:/o:debian:debian_linux:13.0, p-cpe:/a:debian:debian_linux:mutt

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

Exploit Ease: No known exploits are available

Patch Publication Date: 10/15/2026

Vulnerability Publication Date: 10/8/2026

Reference Information

CVE: CVE-2026-107570