CVE-2025-15539 - CVE House
Back to Database
Status published Medium CVE-2025-15539

Open5GS sgwc s11-handler.c sgwc_s11_handle_downlink_data_notification_ack denial of service

Vulnerability Description

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.

Impact Analysis

Refer to official advisory for detailed impact metrics.

Remediation

Ensure systems are updated to the latest vendor-supplied patch levels.

THREAT MONITOR

Am I Vulnerable?

Launch our assessment wizard to check if your infrastructure is exposed to • CVE-2025-15539

Credits & Attribution

The following person or organization is credited with identifying this vulnerability, as recorded in the NVD database:

  • FrankyLin (VulDB User)
  • FrankyLin (VulDB User)

Affected Vendor

Affected Software

Open5GS
Vulnerable Versions:
2.7.0, 2.7.1, 2.7.2, 2.7.3, 2.7.4, 2.7.5, 2.7.6

Timeline

Official Publish: January 18th, 2026
Last Modified: February 23rd, 2026
Added to House: July 22nd, 2026

CVSS Vectors

V3: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L/E:P/RL:O/RC:C

Weaknesses (CWE)