{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-64611","assignerOrgId":"53f830b8-0a3f-465b-8143-3b8a9948e749","state":"PUBLISHED","assignerShortName":"redhat","dateReserved":"2026-07-20T11:15:34.675Z","datePublished":"2026-07-23T10:46:49.957Z","dateUpdated":"2026-11-05T22:08:07.782Z"},"containers":{"cna":{"title":"Libcupsfilters: cups-filters: libcupsfilters: cpu exhaustion via infinite loop in cfieee1284normalizemakemodel()","metrics":[{"other":{"content":{"value":"Moderate","namespace":"https://access.redhat.com/security/updates/classification/"},"type":"Red Hat severity rating"}},{"cvssV3_1":{"attackComplexity":"LOW","attackVector":"NETWORK","availabilityImpact":"HIGH","baseScore":7.5,"baseSeverity":"HIGH","confidentialityImpact":"NONE","integrityImpact":"NONE","privilegesRequired":"NONE","scope":"UNCHANGED","userInteraction":"NONE","vectorString":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","version":"3.1"},"format":"CVSS"}],"descriptions":[{"lang":"en","value":"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."}],"affected":[{"vendor":"Red Hat","product":"Red Hat Enterprise Linux 10","collectionURL":"https://access.redhat.com/downloads/content/package-browser/","packageName":"libcupsfilters","defaultStatus":"affected","versions":[{"version":"1:2.0.0-13.el10_2","lessThan":"*","versionType":"rpm","status":"unaffected"}],"cpes":["cpe:/o:redhat:enterprise_linux:10.2"]},{"vendor":"Red Hat","product":"Red Hat Enterprise Linux 10","collectionURL":"https://access.redhat.com/downloads/content/package-browser/","packageName":"cups-filters","defaultStatus":"unaffected","cpes":["cpe:/a:redhat:enterprise_linux:10"]},{"vendor":"Red Hat","product":"Red Hat Enterprise Linux 7","collectionURL":"https://access.redhat.com/downloads/content/package-browser/","packageName":"cups-filters","defaultStatus":"unaffected","cpes":["cpe:/o:redhat:rhel_els:7"]},{"vendor":"Red Hat","product":"Red Hat Enterprise Linux 8","collectionURL":"https://access.redhat.com/downloads/content/package-browser/","packageName":"cups-filters","defaultStatus":"unaffected","cpes":["cpe:/a:redhat:enterprise_linux:8"]},{"vendor":"Red Hat","product":"Red Hat Enterprise Linux 9","collectionURL":"https://access.redhat.com/downloads/content/package-browser/","packageName":"cups-filters","defaultStatus":"unaffected","cpes":["cpe:/a:redhat:enterprise_linux:9"]}],"references":[{"url":"https://access.redhat.com/errata/RHSA-2026:56965","name":"RHSA-2026:56965","tags":["vendor-advisory","x_refsource_REDHAT"]},{"url":"https://access.redhat.com/security/cve/CVE-2026-64611","tags":["vdb-entry","x_refsource_REDHAT"]},{"url":"https://bugzilla.redhat.com/show_bug.cgi?id=2502799","name":"RHBZ#2502799","tags":["issue-tracking","x_refsource_REDHAT"]},{"url":"https://github.com/OpenPrinting/libcupsfilters/security/advisories/GHSA-rcq7-rv5g-j3r4"}],"datePublic":"2026-06-14T08:37:48.000Z","problemTypes":[{"descriptions":[{"cweId":"CWE-835","description":"Loop with Unreachable Exit Condition","lang":"en","type":"CWE"}]}],"x_redhatCweChain":"CWE-835: Loop with Unreachable Exit Condition","workarounds":[{"lang":"en","value":"If automatic network printer discovery is not strictly necessary for your environment, stopping the service completely eliminates the vulnerable attack surface.If you must use cups-browsed for legitimate operational reasons, you should prevent untrusted networks from feeding data to the daemon."}],"timeline":[{"lang":"en","time":"2026-06-14T08:37:48.000Z","value":"Reported to Red Hat."},{"lang":"en","time":"2026-06-14T08:37:48.000Z","value":"Made public."}],"credits":[{"lang":"en","value":"Red Hat would like to thank Michalis Vasileiadis for reporting this issue."}],"providerMetadata":{"orgId":"53f830b8-0a3f-465b-8143-3b8a9948e749","shortName":"redhat","dateUpdated":"2026-11-05T22:08:07.782Z"},"x_generator":{"engine":"cvelib 1.8.0"}},"adp":[{"metrics":[{"other":{"type":"ssvc","content":{"timestamp":"2026-07-23T20:07:10.793765Z","id":"CVE-2026-64611","options":[{"Exploitation":"none"},{"Automatable":"yes"},{"Technical Impact":"partial"}],"role":"CISA Coordinator","version":"2.0.3"}}}],"title":"CISA ADP Vulnrichment","providerMetadata":{"orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","shortName":"CISA-ADP","dateUpdated":"2026-07-23T20:15:01.235Z"}}]}}