CVE-2025-15539A vulnerability was determined in Open5GS up to 2.7.6.
Updated under an hour ago ()
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No exploitation reported and no EPSS estimate yet.
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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.
- CVSS
- 7.5 HIGH (v3.1, NVD)CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
- Weakness (CWE)
- CWE-404
- Known exploited
- Not in CISA's KEV catalog
- EPSS (exploitation in the next 30 days)
- Not loaded for this CVE
- Assigned by
- Not given
- NVD analysis
- Modified
- Record last updated
- Jun 17, 2026
- First seen by InfoSec Signals
- Oct 9, 2026
Affected products
open5gs open5gs open5gs:open5gs | through 2.7.6 | NVD |
References
- 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
The CVE record on cve.org NVD's entry
The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.