Medium severity5.9NVD Advisory· Published Oct 9, 2026· Updated Oct 9, 2026
CVE-2026-108105
CVE-2026-108105
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.
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Affected products
1Patches
Vulnerability mechanics
References
4- github.com/open5gs/open5gs/blob/v2.8.0/src/mme/mme-gn-handler.cnvd
- github.com/open5gs/open5gs/commit/346ce7a5e5cf2812bac3af042b5afba35bcf4f89nvd
- github.com/open5gs/open5gs/security/advisories/GHSA-9crh-64c8-56q6nvd
- www.vulncheck.com/advisories/open5gs-through-2.8.0-mme-reachable-assertion-via-gtpv1-sgsn-context-requestnvd
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