Reachable Assertion Affecting open5gs/open5gs package, versions [,2.7.7)
Threat Intelligence
Snyk has a proof-of-concept or detailed explanation of how to exploit this vulnerability.
The probability is the direct output of the EPSS model, and conveys an overall sense of the threat of exploitation in the wild. The percentile measures the EPSS probability relative to all known EPSS scores. Note: This data is updated daily, relying on the latest available EPSS model version. Check out the EPSS documentation for more details.
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Test your applications- Snyk IDSNYK-UNMANAGED-OPEN5GSOPEN5GS-14535812
- published19 Dec 2025
- disclosed18 Dec 2025
- creditLinZiyu
Introduced: 18 Dec 2025
CVE-2025-65559 (opens in a new tab)How to fix?
Upgrade open5gs/open5gs to version 2.7.7 or higher.
Overview
Affected versions of this package are vulnerable to Reachable Assertion in the ogs_pfcp_object_teid_hash_set function when handling a PFCP Session Establishment Request with CH=1 and mismatched F-TEID address-family flags compared to the configured GTP-U resource family for the selected DNN.
Note:
An attacker can cause the process to crash by sending specially crafted PFCP requests.