{"id":"CVE-2026-108105","published":"2026-10-09T15:17:11.380","lastModified":"2026-10-09T18:17:06.590","description":"Open5GS through 2.8.0 contains a reachable assertion vulnerability in mme_gn_handle_sgsn_context_request() that allows remote unauthenticated attackers to crash the MME via malformed SGSN Address IEs. Attackers sending GTPv1-C traffic from a configured SGSN address with a known UE IMSI or P-TMSI can supply an invalid address length to terminate open5gs-mmed, denying service to all subscribers.","cvssScore":5.9,"cvssSeverity":"MEDIUM","cvssVector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H","cwes":["CWE-617"],"vendors":[],"products":[],"references":[{"url":"https://github.com/open5gs/open5gs","tags":[]},{"url":"https://github.com/open5gs/open5gs/blob/v2.8.0/src/mme/mme-gn-handler.c#L208-L217","tags":[]},{"url":"https://github.com/open5gs/open5gs/commit/346ce7a5e5cf2812bac3af042b5afba35bcf4f89","tags":[]},{"url":"https://github.com/open5gs/open5gs/security/advisories/GHSA-9crh-64c8-56q6","tags":[]},{"url":"https://www.vulncheck.com/advisories/open5gs-through-2.8.0-mme-reachable-assertion-via-gtpv1-sgsn-context-request","tags":[]},{"url":"https://github.com/open5gs/open5gs/security/advisories/GHSA-9crh-64c8-56q6","tags":[]}],"exploitRefs":[{"url":"https://github.com/open5gs/open5gs","tags":[]},{"url":"https://github.com/open5gs/open5gs/blob/v2.8.0/src/mme/mme-gn-handler.c#L208-L217","tags":[]},{"url":"https://github.com/open5gs/open5gs/commit/346ce7a5e5cf2812bac3af042b5afba35bcf4f89","tags":[]},{"url":"https://github.com/open5gs/open5gs/security/advisories/GHSA-9crh-64c8-56q6","tags":[]},{"url":"https://github.com/open5gs/open5gs/security/advisories/GHSA-9crh-64c8-56q6","tags":[]}],"hasPoc":true,"ai":null}