Debian dla-4686 : dhcpcd5 - security update

medium Nessus Plugin ID 327108

Synopsis

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

Description

The remote Debian 11 host has a package installed that is affected by multiple vulnerabilities as referenced in the dla-4686 advisory.

- ------------------------------------------------------------------------- Debian LTS Advisory DLA-4686-1 [email protected] https://www.debian.org/lts/security/ Martin-ric Racine July 15, 2026 https://wiki.debian.org/LTS
- -------------------------------------------------------------------------

Package : dhcpcd5 Version : 7.1.0-2+deb11u1 CVE ID : CVE-2025-70102 CVE-2026-56114 Debian Bug : 1140767

Two vulnerabilities were discovered in dhcpcd5, a DHCP client, which may result in denial of service and possibly data corruption.

For Debian 11 bullseye, these problems have been fixed in version 7.1.0-2+deb11u1.

We recommend that you upgrade your dhcpcd5 packages.

For the detailed security status of dhcpcd5 please refer to its security tracker page at:
https://security-tracker.debian.org/tracker/dhcpcd5

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.

Solution

Upgrade the dhcpcd5 packages.

See Also

https://packages.debian.org/source/bullseye/dhcpcd5

https://security-tracker.debian.org/tracker/CVE-2025-70102

https://security-tracker.debian.org/tracker/CVE-2026-56114

https://security-tracker.debian.org/tracker/source-package/dhcpcd5

Plugin Details

Severity: Medium

ID: 327108

File Name: debian_DLA-4686.nasl

Version: 1.1

Type: Local

Agent: unix

Published: 7/16/2026

Updated: 7/16/2026

Supported Sensors: Continuous Assessment, Nessus Agent, Nessus

Risk Information

VPR

Risk Factor: Low

Score: 3

Percentile: 23.72

CVSS v2

Risk Factor: Medium

Base Score: 6.1

Temporal Score: 4.5

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

CVSS Score Source: CVE-2026-56114

CVSS v3

Risk Factor: Medium

Base Score: 6.5

Temporal Score: 5.7

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

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

CVSS v4

Risk Factor: Medium

Base Score: 6

Threat Score: 2.3

Threat Vector: CVSS:4.0/E:U

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

Vulnerability Information

CPE: cpe:/o:debian:debian_linux:11.0, p-cpe:/a:debian:debian_linux:dhcpcd5

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

Exploit Ease: No known exploits are available

Patch Publication Date: 7/15/2026

Vulnerability Publication Date: 6/15/2026

Reference Information

CVE: CVE-2025-70102, CVE-2026-56114