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Slackware Linux 15.0 / current libpng Multiple Vulnerabilities (SSA:2026-085-02)

high Nessus Plugin ID 303967

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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 1.6.56. It is, therefore, affected by multiple vulnerabilities as referenced in the SSA:2026-085-02 advisory.

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

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

See Also

http://www.nessus.org/u?117619c5

Plugin Details

Severity: High

ID: 303967

File Name: Slackware_SSA_2026-085-02.nasl

Version: 1.2

Type: Local

Published: 3/27/2026

Updated: 4/6/2026

Supported Sensors: Nessus

Risk Information

VPR

Risk Factor: High

Score: 7.4

CVSS v2

Risk Factor: High

Base Score: 9

Temporal Score: 7

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

CVSS Score Source: CVE-2026-33636

CVSS v3

Risk Factor: High

Base Score: 7.6

Temporal Score: 6.8

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

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

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: 3/26/2026

Vulnerability Publication Date: 3/26/2026

Reference Information

CVE: CVE-2026-33416, CVE-2026-33636

IAVA: 2026-A-0272