CVE-2026-64611CWE-835

CVE-2026-64611

High · published July 23, 2026

CVSS v3.1
7.5
EPSS
1%
Percentile
49.5
In the wild
Unconfirmed
What it is

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.

The record
Technical detail
CVSS v3.1
7.5 · HIGH
Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
CVSS v4.0
Not supplied
EPSS
0.00630 · 49.5th percentile
Weakness
CWE-835 · Loop with Unreachable Exit Condition ('Infinite Loop')
Published
2026-07-23T15:16Z
References (4)
https://access.redhat.com/errata/RHSA-2026:56965 · [email protected]https://access.redhat.com/security/cve/CVE-2026-64611 · [email protected]https://bugzilla.redhat.com/show_bug.cgi?id=2502799 · [email protected]https://github.com/OpenPrinting/libcupsfilters/security/advisories/GHSA-rcq7-rv5g-j3r4 · [email protected]
EPSS history
Timeline
  • 23 JUL 10:46Z
    Libcupsfilters: cups-filters: libcupsfilters: cpu exhaustion via infinite loop in cfieee1284normalizemakemodel()
    cvelistv5