Vulnerability · Published Feb 2, 2026 · Assigned by VulDB
CVE-2026-1738Open5GS SGWC context.c sgwc_tunnel_add assertion
Medium 5.3
In plain English
A medium-severity security flaw in Open5GS. Proof-of-concept exploit code is public. The chance it is exploited in the next 30 days is estimated at 0.7% (higher than 54% of all known vulnerabilities).
Official description
A flaw has been found in Open5GS up to 2.7.6. The impacted element is the function sgwc_tunnel_add of the file /src/sgwc/context.c of the component SGWC. Executing a manipulation of the argument pdr can lead to reachable assertion. The attack can be executed remotely. The exploit has been published and may be used. It is advisable to implement a patch to correct this issue. The issue report is flagged as already-fixed.
Affected products (as reported)
Weakness: CWE-617 · Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L/E:P/RL:O/RC:C
References
- VDB-343637 | Open5GS SGWC context.c sgwc_tunnel_add assertion vdb-entry, technical-description
- VDB-343637 | CTI Indicators (IOB, IOC, IOA) signature, permissions-required
- Submit #741193 | Open5gs SGWC v2.7.6 Denial of Service third-party-advisory
- https://github.com/open5gs/open5gs/issues/4261 issue-tracking
- https://github.com/open5gs/open5gs/issues/4261#event-21968563677 issue-tracking
- https://github.com/open5gs/open5gs/issues/4261#issue-3787803578 exploit, issue-tracking
- https://github.com/open5gs/open5gs/ product