High 7.5Published Jul 23, 2026

CVE-2026-64611Libcupsfilters: cups-filters: libcupsfilters: cpu exhaustion via infinite loop in cfieee1284normalizemakemodel()

Updated under an hour ago (Oct 27, 2026, 6:30 AM ET)

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It affects Red Hat Enterprise Linux 10. Add what you run to find out whether that includes you.

No exploitation reported and no EPSS estimate yet.

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Exploited in the last 30 days

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: 7.5 HIGH (v3.1, CNA)CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Weakness (CWE): CWE-835
Known exploited: Not in CISA's KEV catalog
EPSS (exploitation in the next 30 days): Not loaded for this CVE
Assigned by: redhat
NVD analysis: Awaiting Analysis
Record last updated: Aug 19, 2026
First seen by InfoSec Signals: Oct 9, 2026

Affected products

Affected products

Red Hat Red Hat Enterprise Linux 10 redhat:enterprise_linux	from 1:2.0.0-13.el10_2 not affected	CNA record

References

References

https://access.redhat.com/errata/RHSA-2026:56965	vendor-advisory, x-refsource-redhat
https://access.redhat.com/security/cve/CVE-2026-64611	vdb-entry, x-refsource-redhat
https://bugzilla.redhat.com/show_bug.cgi?id=2502799	issue-tracking, x-refsource-redhat
https://github.com/OpenPrinting/libcupsfilters/security/advisories/GHSA-rcq7-rv5g-j3r4

The CVE record on cve.org NVD's entry

The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.