High severity7.5NVD Advisory· Published Jul 23, 2026· Updated Aug 19, 2026

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.

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LLM-synthesized narrative grounded in this CVE's description and references.

Affected products

Openprinting/libcupsfiltersllm-fuzzy
osv-coords
pkg:rpm/almalinux/libcupsfilters
Range: < 1:2.0.0-13.el10_2

Patches

Vulnerability mechanics

References

access.redhat.com/errata/RHSA-2026:56965nvd
access.redhat.com/security/cve/CVE-2026-64611nvd
bugzilla.redhat.com/show_bug.cginvd
github.com/OpenPrinting/libcupsfilters/security/advisories/GHSA-rcq7-rv5g-j3r4nvd

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