What is RHSA-2026:0321?

RHSA-2026:0321 is a security advisory published by Red Hat Product Security with High severity. Red Hat Security Advisory: libpng security update

Which CVE IDs does RHSA-2026:0321 cover?

RHSA-2026:0321 covers the following CVE IDs: CVE-2025-64720, CVE-2025-65018, CVE-2025-66293. Each CVE has its own detail page on EchelonGraph Pulse with the synthesized EG score.

What is the CVSS v3 score of RHSA-2026:0321?

RHSA-2026:0321 has a CVSS v3 base score of 7.1, published by Red Hat Product Security.

RHSA-2026:0321HighCVSS 7.1

Red Hat Security Advisory: libpng security update

Vendor

Red Hat Product Security

Published

January 8, 2026

Last Modified

May 29, 2026

🔗 CVE IDs covered (3)

CVE-2025-64720 →CVE-2025-65018 →CVE-2025-66293 →

📋 Description

CVE-2025-64720 — libpng: LIBPNG buffer overflow CVE-2025-65018 — libpng: LIBPNG heap buffer overflow CVE-2025-66293 — libpng: LIBPNG out-of-bounds read in png_image_read_composite

🔗 References (6)

selfhttps://access.redhat.com/errata/RHSA-2026:0321
externalhttps://access.redhat.com/security/updates/classification/#important
externalhttps://bugzilla.redhat.com/show_bug.cgi?id=2416904
externalhttps://bugzilla.redhat.com/show_bug.cgi?id=2416907
externalhttps://bugzilla.redhat.com/show_bug.cgi?id=2418711
selfhttps://security.access.redhat.com/data/csaf/v2/advisories/2026/rhsa-2026_0321.json