CVE-2025-15539
Open5GS sgwc s11-handler.c sgwc_s11_handle_downlink_data_notification_ack denial of service
CVSS Score
5.3
EPSS Score
0.0%
EPSS Percentile
0th
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 | CWE-404 |
| Vendor | n/a |
| Product | open5gs |
| Published | Jan 18, 2026 |
| Last Updated | Feb 23, 2026 |
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CVSS v3 Breakdown
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 Attack Vector
Attack Complexity
Privileges Required
User Interaction
Scope
Confidentiality
Integrity
Availability
Affected Versions
n/a / Open5GS
2.7.0 2.7.1 2.7.2 2.7.3 2.7.4 2.7.5 2.7.6
References
vuldb.com: https://vuldb.com/?id.341732 vuldb.com: https://vuldb.com/?ctiid.341732 vuldb.com: https://vuldb.com/?submit.735339 github.com: https://github.com/open5gs/open5gs/issues/4230 github.com: https://github.com/open5gs/open5gs/issues/4230#issue-3774173079 github.com: https://github.com/open5gs/open5gs/commit/b4707272c1caf6a7d4dca905694ea55557a0545f github.com: https://github.com/open5gs/open5gs/
Credits
🔍 FrankyLin (VulDB User) FrankyLin (VulDB User)