CVE-2026-64612
Medium
Elevated severity or exploit probability.
CVSS base
7.5
HIGH
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
EPSS — probability of exploitation (30 days)
0.7%
51.3th percentile
CISA KEV
Not listed
Weakness / dates
CWE-248
Published 2026-07-20 · modified 2026-08-24
Description
A flaw was found in libcupsfilters and cups-filters. The PNG image reading function creates a libpng reader without installing an error recovery handler, causing the CUPS image filter process to abort when processing a malformed PNG file. An unauthenticated attacker could exploit this by submitting a specially crafted PNG print job, leading to denial of service of the in-flight print job.
References
- https://access.redhat.com/errata/RHSA-2026:56965
- https://access.redhat.com/errata/RHSA-2026:57451
- https://access.redhat.com/errata/RHSA-2026:58560
- https://access.redhat.com/security/cve/CVE-2026-64612
- https://bugzilla.redhat.com/show_bug.cgi?id=2502801
- https://github.com/OpenPrinting/libcupsfilters/security/advisories/GHSA-7mxj-cfq5-84ch