All vulnerabilities
CVE-2026-108105GHSA-9crh-64c8-56q6

Open5GS through 2.8.0 MME Reachable Assertion via GTPv1 SGSN Context Request

open5gs open5gs
Open in ThreatlineRecord JSON
CVSS
8.2High
ExploitationPublic exploit codeCISA's assessment says proof of concept code is public, assessed 9 Oct 2026. Not in the KEV catalogCISA via CVE List
Exploit odds (EPSS)0.52%Chance of exploitation activity in the next 30 days, higher than 43% of CVEs. Scored 23 Oct 2026FIRST EPSS
Fixed inNone listedNo source names a fixed version. Check the vendor advisory below
Published9 Oct 2026Updated 9 Oct 2026CVE List

What fixes it

No source in this snapshot names a fixed version. The vendor advisories under References are the place to check.

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.

Text from CVE List

Affected versions 1

  • open5gsaffected: all versions through 2.8.0CVE List

References 5