CVE-2026-64611

Description

A flaw was found in libcupsfilters. The cfIEEE1284NormalizeMakeModel() function enters an infinite loop when processing a printer-advertised IEEE-1284 device ID with an empty model field, causing sustained CPU consumption. A network-adjacent attacker could exploit this by broadcasting a specially crafted printer advertisement, leading to denial of service.

CVSS Vector

References

• https://access.redhat.com/security/cve/CVE-2026-64611
• https://bugzilla.redhat.com/show_bug.cgi?id=2502799
• https://github.com/OpenPrinting/libcupsfilters/security/advisories/GHSA-rcq7-rv5g-j3r4