PT-2026-63799 · Red Hat · Red Hat Enterprise Linux 10+3

CVE-2026-64611 · Published 2026-07-23 · Updated 2026-07-23

Mitre

CVSS v3.1

7.5

High

Base vector

AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

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.

Fix

Infinite Loop

Weakness Enumeration

CWE-835

Related Identifiers

CVE-2026-64611

Affected Products

Red Hat Enterprise Linux 10

Red Hat Enterprise Linux 7

Red Hat Enterprise Linux 8

Red Hat Enterprise Linux 9

References · 4

• https://nvd.nist.gov/vuln/detail/CVE-2026-64611 · Security Note
• https://github.com/OpenPrinting/libcupsfilters/security/advisories/GHSA-rcq7-rv5g-j3r4 · Note
• https://access.redhat.com/security/cve/CVE-2026-64611 · Note
• https://bugzilla.redhat.com/show_bug.cgi?id=2502799 · Note