← back
CVE-2025-15539

Open5GS sgwc s11-handler.c sgwc_s11_handle_downlink_data_notification_ack denial of service

CVSS 6.9 MEDIUMEPSS 0.7%CWE-404
Vexday Risk Score
13Low
SSVC decision (CISA)
Track
No exploitation signal → monitor
CVSS 6.9EPSS 0.7%KEV nãoPoC —Nuclei —Metasploit —Patch referenciado
Lifecycle
18 Jan 2026Published on NVD
Recommendation: Monitor — no exploitation signal at the moment.
A vulnerability was determined in Open5GS up to 2.7.6. Impacted is the function sgwc_s11_handle_downlink_data_notification_ack of the file src/sgwc/s11-handler.c of the component sgwc. This manipulation causes denial of service. The attack can be initiated remotely. The exploit has been publicly disclosed and may be utilized. Patch name: b4707272c1caf6a7d4dca905694ea55557a0545f. To fix this issue, it is recommended to deploy a patch. The issue report is flagged as already-fixed.
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:P
Affected products
n/a · Open5GS

Want to know if your infrastructure is exposed to this?

Talk to TrueHacking →
References
https://github.com/open5gs/open5gs/https://github.com/open5gs/open5gs/commit/b4707272c1caf6a7d4dca905694ea55557a0545fhttps://github.com/open5gs/open5gs/issues/4230https://github.com/open5gs/open5gs/issues/4230#issue-3774173079https://vuldb.com/?ctiid.341732https://vuldb.com/?id.341732https://vuldb.com/?submit.735339