CVE-2025-15539

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.

• CWE-404

• https://github.com/open5gs/open5gs/
• https://github.com/open5gs/open5gs/commit/b4707272c1caf6a7d4dca905694ea55557a0545fPatch
• https://github.com/open5gs/open5gs/issues/4230Exploit, Issue Tracking, Vendor Advisory
• https://github.com/open5gs/open5gs/issues/4230#issue-3774173079Exploit, Issue Tracking, Vendor Advisory
• https://vuldb.com/?ctiid.341732Permissions Required, VDB Entry
• https://vuldb.com/?id.341732Third Party Advisory, VDB Entry
• https://vuldb.com/?submit.735339Third Party Advisory, VDB Entry

Published

Jan 19, 2026

Last Modified

Jun 17, 2026

Status

Modified

• How Strix found a critical auth bypass in etcdStrix autonomously discovered a critical authentication bypass in etcd, later designated CVE-2026-33413.
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