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Slackware Linux 15.0 / current libpng Vulnerability (SSA:2026-042-02)

high Nessus Plugin ID 299276

Synopsis

The remote Slackware Linux host is missing a security update to libpng.

Description

The version of libpng installed on the remote host is prior to 1.6.55. It is, therefore, affected by a vulnerability as referenced in the SSA:2026-042-02 advisory.

 New libpng packages are available for Slackware 15.0 and -current to fix a security issue.

Tenable has extracted the preceding description block directly from the libpng 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 affected libpng package.

See Also

http://www.nessus.org/u?39c37f2f

Plugin Details

Severity: High

ID: 299276

File Name: Slackware_SSA_2026-042-02.nasl

Version: 1.1

Type: local

Published: 2/17/2026

Updated: 2/17/2026

Supported Sensors: Nessus

Risk Information

VPR

Risk Factor: Medium

Score: 6.7

CVSS v2

Risk Factor: High

Base Score: 7.6

Temporal Score: 6

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

CVSS Score Source: CVE-2026-25646

CVSS v3

Risk Factor: High

Base Score: 8.1

Temporal Score: 7.3

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:P/RL:O/RC:C

CVSS v4

Risk Factor: High

Base Score: 8.3

Threat Score: 7

Threat Vector: CVSS:4.0/E:P

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

Vulnerability Information

CPE: p-cpe:/a:slackware:slackware_linux:libpng, cpe:/o:slackware:slackware_linux, cpe:/o:slackware:slackware_linux:15.0

Required KB Items: Host/local_checks_enabled, Host/Slackware/release, Host/Slackware/packages

Exploit Available: true

Exploit Ease: Exploits are available

Patch Publication Date: 2/11/2026

Vulnerability Publication Date: 2/10/2026

Reference Information

CVE: CVE-2026-25646

IAVA: 2026-A-0135