openSUSE Leap 15.6 libpng16 Critical Heap Overflow Vulnerability Alert
opensuse
February 23, 2026
An update that solves one vulnerability can now be installed.
Description
This update for libpng16 fixes the following issues:
* CVE-2026-25646: heap buffer overflow vulnerability in
png_set_dither/png_set_quantize (bsc#1258020).
Topics Covered
Patch
## 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:
* openSUSE Leap 15.6
zypper in -t patch SUSE-2026-597=1 openSUSE-SLE-15.6-2026-597=1
* Basesystem Module 15-SP7
zypper in -t patch SUSE-SLE-Module-Basesystem-15-SP7-2026-597=1
* SUSE Linux Enterprise Server 15 SP6 LTSS
zypper in -t patch SUSE-SLE-Product-SLES-15-SP6-LTSS-2026-597=1
* SUSE Linux Enterprise Server for SAP Applications 15 SP6
zypper in -t patch SUSE-SLE-Product-SLES_SAP-15-SP6-2026-597=1
Package List
* openSUSE Leap 15.6 (aarch64 ppc64le s390x x86_64 i586)
* libpng16-16-1.6.40-150600.3.12.1
* libpng16-16-debuginfo-1.6.40-150600.3.12.1
* libpng16-devel-1.6.40-150600.3.12.1
* libpng16-tools-1.6.40-150600.3.12.1
* libpng16-compat-devel-1.6.40-150600.3.12.1
* libpng16-debugsource-1.6.40-150600.3.12.1
* libpng16-tools-debuginfo-1.6.40-150600.3.12.1
* openSUSE Leap 15.6 (x86_64)
* libpng16-16-32bit-debuginfo-1.6.40-150600.3.12.1
* libpng16-16-32bit-1.6.40-150600.3.12.1
* libpng16-devel-32bit-1.6.40-150600.3.12.1
* libpng16-compat-devel-32bit-1.6.40-150600.3.12.1
* openSUSE Leap 15.6 (aarch64_ilp32)
* libpng16-compat-devel-64bit-1.6.40-150600.3.12.1
* libpng16-16-64bit-debuginfo-1.6.40-150600.3.12.1
* libpng16-devel-64bit-1.6.40-150600.3.12.1
* libpng16-16-64bit-1.6.40-150600.3.12.1
* Basesystem Module 15-SP7 (aarch64 ppc64le s390x x86_64)
* libpng16-16-1.6.40-150600.3.12.1
* libpng16-16-debuginfo-1.6.40-150600.3.12.1
* libpng16-devel-1.6.40-150600.3.12.1
* libpng16-compat-devel-1.6.40-150600.3.12.1
*...
Read the Full AdvisoryReferences
* bsc#1258020
## References:
* https://www.suse.com/security/cve/CVE-2026-25646.html
* https://bugzilla.suse.com/show_bug.cgi?id=1258020
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Severity
important
Lowest
Low
Medium
High
Critical
Announcement ID: SUSE-SU-2026:0597-1
Release Date: 2026-02-23T15:58:22Z
Affected Products:
* Basesystem Module 15-SP7
* openSUSE Leap 15.6
* SUSE Linux Enterprise Desktop 15 SP7
* SUSE Linux Enterprise Real Time 15 SP7
* SUSE Linux Enterprise Server 15 SP6
* SUSE Linux Enterprise Server 15 SP6 LTSS
* SUSE Linux Enterprise Server 15 SP7
* SUSE Linux Enterprise Server for SAP Applications 15 SP6
* SUSE Linux Enterprise Server for SAP Applications 15 SP7
Topics Covered
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