CVE-2025-15539 (GCVE-0-2025-15539)
Vulnerability from cvelistv5 – Published: 2026-01-18 23:32 – Updated: 2026-02-23 08:42 X_Open Source
VLAI
EPSS
VEX
Title
Open5GS sgwc s11-handler.c sgwc_s11_handle_downlink_data_notification_ack denial of service
Summary
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.
Severity
SSVC
Exploitation: poc
Automatable: yes
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-01-20 16:37 UTC
CWE
- CWE-404 - Denial of Service
Assigner
VulDB
CNA
References
7 references
| URL | Tags |
|---|---|
| https://vuldb.com/?id.341732 | vdb-entrytechnical-description |
| https://vuldb.com/?ctiid.341732 | signaturepermissions-required |
| https://vuldb.com/?submit.735339 | third-party-advisory |
| https://github.com/open5gs/open5gs/issues/4230 | issue-tracking |
| https://github.com/open5gs/open5gs/issues/4230#is… | exploitissue-tracking |
| https://github.com/open5gs/open5gs/commit/b470727… | patch |
| https://github.com/open5gs/open5gs/ | product |
Impacted products
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Browse all ATT&CK techniques and the vulnerabilities related to each.
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