CVE-2026-64611

HIGH7.5

Libcupsfilters: cups-filters: libcupsfilters: cpu exhaustion via infinite loop in cfieee1284normalizemakemodel()

Published Jul 23, 2026

Modified 4 days ago

Details

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.

References

WEB

https://access.redhat.com/security/cve/CVE-2026-64611

WEB

https://bugzilla.redhat.com/show_bug.cgi?id=2502799

WEB

https://github.com/OpenPrinting/libcupsfilters/security/advisories/GHSA-rcq7-rv5g-j3r4

ADVISORY

https://www.cve.org/CVERecord?id=CVE-2026-64611

CVSS Analysis

CVSS v3.1

7.5