CVE-2026-64611 — Security Box Score

CVE · referencelatest edition

Reference page — cumulative record through Wednesday, August 19, 2026 UTC. Reference pages update as the archive grows; only dated daily editions are immutable pages of record.

CVE-2026-64611HIGH

Red Hat Red Hat Enterprise Linux 10 — Libcupsfilters: cups-filters: libcupsfilters: cpu exhaustion via infinite loop in cfieee1284normalizemakemodel()

  AV  AC  PR  UI  S  C  I  A   CVSS    EPSS   %ile   KEV
   N   L   N   N  U  N  N  H    7.5   .0034   27.0     —

AFFECTED
  Product                      Versions     Fixed
  Red Hat Enterprise Linux 10  unspecified  1:2.0.0-13.el10_2
  Red Hat Enterprise Linux 10  unspecified  —
  Red Hat Enterprise Linux 7   unspecified  —
  Red Hat Enterprise Linux 8   unspecified  —
  Red Hat Enterprise Linux 9   unspecified  —

TIMELINE
  Jul 20  Reserved by redhat
  Jul 23  Published (CNA: redhat)
  Aug 18  PATCH SHIPPED — CVE-2026-64611 (Red Hat Enterprise Linux 10). Fixed in Red Hat Enterprise Linux 10 1:2.0.0-13.el10_2.

CWE-835 · CNA: redhat · CVSS v3.1 · 4 references · NVD status: Awaiting Analysis

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.

Lifecycle

Complete event history — 3 events, chronological
Date	Event	Detail
July 20, 2026	Reserved	Reserved by redhat
July 23, 2026	Published	Published (CNA: redhat)
August 18, 2026	PATCH SHIPPED	PATCH SHIPPED — CVE-2026-64611 (Red Hat Enterprise Linux 10). Fixed in Red Hat Enterprise Linux 10 1:2.0.0-13.el10_2.

Affected

Affected products and packages — 5 rows
Vendor	Product / Package	Ecosystem	Version introduced	Fixed
Red Hat	Red Hat Enterprise Linux 10	—	—	1:2.0.0-13.el10_2
Red Hat	Red Hat Enterprise Linux 10	—	—	—
Red Hat	Red Hat Enterprise Linux 7	—	—	—
Red Hat	Red Hat Enterprise Linux 8	—	—	—
Red Hat	Red Hat Enterprise Linux 9	—	—	—

Weaknesses

CWE-835

References (4)

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

Authoritative record: CVE-2026-64611 at cve.org

Vendors: red hat

Weaknesses: CWE-835

About this page

This is a reference page, not a dated page of record. It assembles the complete lifecycle of CVE-2026-64611 from the CVE Program record, NVD enrichment, the CISA KEV catalog, EPSS, and OSV advisories. The box score's numbers (CVSS, EPSS, KEV status) are current as of Wednesday, August 19, 2026 UTC and are re-derived as the archive grows; only dated daily editions are immutable pages of record. The authoritative source for this identifier is cve.org.