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Debian dla-4864 : libswupdate-dev - security update

critical Nessus Plugin ID 372214

Synopsis

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

Description

The remote Debian 12 host has packages installed that are affected by multiple vulnerabilities as referenced in the dla-4864 advisory.

 ------------------------------------------------------------------------- Debian LTS Advisory DLA-4864-1 [email protected] https://www.debian.org/lts/security/ Carlos Henrique Lima Melara October 26, 2026 https://wiki.debian.org/LTS
 -------------------------------------------------------------------------

 Package : swupdate Version : 2022.12+dfsg-4+deb12u3 CVE ID : CVE-2025-41259 CVE-2026-109399

 Two vulnerabilities were discovered in swupdate, a software update framework for embedded systems, which could result in privilege escalation or a signature validation bypass.

 For Debian 12 bookworm, these problems have been fixed in version 2022.12+dfsg-4+deb12u3.

 We recommend that you upgrade your swupdate packages.

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

 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 Attachment:
 signature.asc Description: PGP signature

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 libswupdate-dev packages.

See Also

https://packages.debian.org/source/bookworm/swupdate

https://security-tracker.debian.org/tracker/CVE-2025-41259

https://security-tracker.debian.org/tracker/CVE-2026-109399

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

Plugin Details

Severity: Critical

ID: 372214

File Name: debian_DLA-4864.nasl

Version: 1.1

Type: Local

Agent: unix

Published: 10/27/2026

Updated: 10/27/2026

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: Medium

Score: 4.9

Percentile: 57.94

CVSS v2

Risk Factor: High

Base Score: 7.6

Temporal Score: 5.6

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

CVSS Score Source: CVE-2026-109399

CVSS v3

Risk Factor: High

Base Score: 8.1

Temporal Score: 7.1

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

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

CVSS v4

Risk Factor: Critical

Base Score: 9.2

Threat Score: 7.2

Threat Vector: CVSS:4.0/E:U

Vector: CVSS:4.0/AV:N/AC:H/AT:P/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N

Vulnerability Information

CPE: cpe:/o:debian:debian_linux:12.0, p-cpe:/a:debian:debian_linux:libswupdate-dev, p-cpe:/a:debian:debian_linux:libswupdate0.1, p-cpe:/a:debian:debian_linux:lua-swupdate, p-cpe:/a:debian:debian_linux:swupdate-doc, p-cpe:/a:debian:debian_linux:swupdate-www, p-cpe:/a:debian:debian_linux:swupdate

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

Exploit Ease: No known exploits are available

Patch Publication Date: 10/26/2026

Vulnerability Publication Date: 6/3/2026

Reference Information

CVE: CVE-2025-41259, CVE-2026-109399