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SUSE Linux 12 SP5 libpng16 Important Heap Overflow Fix 2026-0583-1

suse
Calendar Grey February 20, 2026
Dist Suse Esm H88
SUSE Security Update for libpng16 addresses heap buffer overflow CVE-2026-25646 to enhance system safety.
An update that solves one vulnerability can now be installed.

Summary

## This update for libpng16 fixes the following issues: * CVE-2026-25646: heap buffer overflow vulnerability in png_set_dither/png_set_quantize (bsc#1258020). ## Patch Instructions: To install this SUSE update use the SUSE recommended installation methods like YaST online_update or "zypper patch". Alternatively you can run the command listed for your product: * SUSE Linux Enterprise Server 12 SP5 LTSS zypper in -t patch SUSE-SLE-SERVER-12-SP5-LTSS-2026-583=1 * SUSE Linux Enterprise Server 12 SP5 LTSS Extended Security zypper in -t patch SUSE-SLE-SERVER-12-SP5-LTSS-EXTENDED-SECURITY-2026-583=1 ## Package List: * SUSE Linux Enterprise Server 12 SP5 LTSS (aarch64 ppc64le s390x x86_64) * libpng16-devel-1.6.8-15.18.1 * libpng16-16-debuginfo-1.6.8-15.18.1 * libpng16-debugsource-1.6.8-15.18.1

Topics%20covered

Topics Covered

security advisory SuSE important heap buffer overflow libpng16 cve-2026-25646

References

* bsc#1258020

Cross-

* CVE-2026-25646

CVSS scores:

* CVE-2026-25646 ( SUSE ): 8.3

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

* CVE-2026-25646 ( SUSE ): 7.0 CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:H

* CVE-2026-25646 ( NVD ): 8.3

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/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

* CVE-2026-25646 ( NVD ): 8.1 CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H

Affected Products:

* SUSE Linux Enterprise High Performance Computing 12 SP5

* SUSE Linux Enterprise Server 12 SP5

* SUSE Linux Enterprise Server 12 SP5 LTSS

* SUSE Linux Enterprise Server 12 SP5 LTSS Extended Security

* SUSE Linux Enterprise Server for SAP Applications 12 SP5

Severity
important
Lowest
Low
Medium
High
Critical

Announcement ID: SUSE-SU-2026:0583-1
Release Date: 2026-02-20T10:02:37Z
Rating: important

Topics%20covered

Topics Covered

security advisory SuSE important heap buffer overflow libpng16 cve-2026-25646

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