{"id":"EUVD-2026-32557","revision":"9fd121110d104993ba3087485d88f06e","records":[{"revision":"9fd121110d104993ba3087485d88f06e","observedAt":"2026-11-05T09:00:43.532+00:00","statement":{"source":"euvd","id":"EUVD-2026-32557","aliases":["CVE-2026-42081","GHSA-77x9-rf64-92gv"],"title":"free5GC is an open-source implementation of the 5G core network. Prior to 4.2.2, the AMF in Free5GC does not verify the UE Security Capabilities received in NGAP PathSwitchRequest messages against its locally stored values, as mandated by 3…","description":"free5GC is an open-source implementation of the 5G core network. Prior to 4.2.2, the AMF in Free5GC does not verify the UE Security Capabilities received in NGAP PathSwitchRequest messages against its locally stored values, as mandated by 3GPP TS 33.501 §6.7.3.1. A malicious gNB can overwrite the AMF's stored UE security capabilities with arbitrary values, which are then propagated in PathSwitchRequest Acknowledge messages and subsequent Handover Request messages. This leads to persistent handover denial-of-service for affected UEs. This vulnerability is fixed in 4.2.2.","state":0,"publishedAt":null,"modifiedAt":null,"affected":[],"metrics":[{"system":"EUVD CVSS 3.1","vector":"CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:C/C:N/I:L/A:L","score":6.1,"severity":null}],"references":["https://github.com/free5gc/free5gc/security/advisories/GHSA-77x9-rf64-92gv"],"sourceUrl":"https://euvd.enisa.europa.eu/vulnerability/EUVD-2026-32557","license":"ENISA EUVD · source terms and attribution apply","enrichment":{"sourceStatus":null,"weaknesses":[],"productCriteria":[],"sourceDates":{"datePublished":"May 27, 2026, 3:59:58 PM","dateUpdated":"May 27, 2026, 5:56:05 PM"},"relatedAdvisories":[],"note":"EUVD source date text has no stated timezone and is retained without inventing a UTC instant. Related bulletin membership is not an alias, common cause or applicability claim. A missing vector with a zero score is treated as unrated. Complete vendor/product and underlying source evidence remains in the original JSON."},"key":"euvd:EUVD-2026-32557","identifiers":["EUVD-2026-32557","CVE-2026-42081","GHSA-77x9-rf64-92gv"]},"retained":false,"historicalAffected":[]}],"coverage":[]}