VYPR
Unrated severityOSV Advisory· Published Jan 18, 2026· Updated Feb 23, 2026

Open5GS sgwc s11-handler.c sgwc_s11_handle_downlink_data_notification_ack denial of service

CVE-2025-15539

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.

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Affected products

2
  • Open5gs/Open5gsOSV2 versions
    v0.1.0, v0.1.1, v0.2.0, …+ 1 more
    • (no CPE)range: v0.1.0, v0.1.1, v0.2.0, …
    • (no CPE)range: <=2.7.6

Patches

Vulnerability mechanics

References

6

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