Fedora 42 mingw-libpng Essential Heap Overflow Fix for CVE-2026-25646
fedora
February 21, 2026
Update to libpng-1.6.55.
Summary
MinGW Windows Libpng library.
Update Information:
Update to libpng-1.6.55.
Topics Covered
Change Log
* Thu Feb 12 2026 Sandro Mani
References
[ 1 ] Bug #2438672 - CVE-2026-25646 mingw-libpng: LIBPNG has a heap buffer overflow in png_set_quantize [fedora-42]
https://bugzilla.redhat.com/show_bug.cgi?id=2438672
[ 2 ] Bug #2438684 - CVE-2026-25646 mingw-libpng: LIBPNG has a heap buffer overflow in png_set_quantize [fedora-43]
https://bugzilla.redhat.com/show_bug.cgi?id=2438684
Update Instructions
This update can be installed with the "dnf" update program. Use su -c 'dnf upgrade --advisory FEDORA-2026-2af2f2fa9d' at the command line. For more information, refer to the dnf documentation available at http://dnf.readthedocs.io/en/latest/command_ref.html#upgrade-command-label
PREVIOUS
NEXT
Severity
critical
Lowest
Low
Medium
High
Critical
Name: mingw-libpng
Product: Fedora 42
Version: 1.6.55
Release: 1.fc42
Summary: MinGW Windows Libpng library
Topics Covered
Get the latest News and Insights
Get the latest Linux and open source security news straight to your inbox.
Related News
Powered By
Linux Security - Your source for Top Linux News, Advisories, HOWTOs and Feature Releases
QUICK LINKS
subscribe to newsletters!
Like staying secure? So do we.
Sign up for updates, tips, and alerts!