CVE-2026-64611
highpriority · track · 0EPSS 0.006 · 50 %ileEURUUSEPSS · scored 2026-10-28
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
Technical severity, 0–10. One row per scoring source.
base score 0–10 · higher = more severe · hover a vector to decode⚠ sources disagree · medium–high · 6.9–7.5
ssvc
A stakeholder decision — act, attend, or track — from exploitation and impact.
weaknesses
The CWE weakness classes this flaw belongs to.
affected products (6)
Products and version ranges known to be affected.
also known as (5)
Other names and identifiers for this entity.
sources
Which sources assert this record, and when.
references (10)
External citations — patches, advisories, analysis.
- https://access.redhat.com/security/cve/CVE-2026-64611cnnvd
- https://bugzilla.redhat.com/show_bug.cgi?id=2502799cnnvd
- https://github.com/OpenPrinting/libcupsfilters/security/advisories/GHSA-rcq7-rv5g-j3r4cnnvd
- https://access.redhat.com/security/cve/CVE-2026-64611enisa_euvd
- https://bugzilla.redhat.com/show_bug.cgi?id=2502799enisa_euvd
- https://github.com/OpenPrinting/libcupsfilters/security/advisories/GHSA-rcq7-rv5g-j3r4enisa_euvd
- https://access.redhat.com/errata/RHSA-2026:56965nvd
- https://access.redhat.com/security/cve/CVE-2026-64611nvd
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