Vulnerability in Open5gs
CVE-2025-8804
A vulnerability was found in Open5GS up to 2.7.5. Affected by this vulnerability is the function ngap_build_downlink_nas_transport of the component AMF. The manipulation leads to reachable assertion. The attack can be launched remotely. The exploit has been disclosed to the public and may be used. Upgrading to version 2.7.6 is able to address this issue. The identifier of the patch is bca0a7b6e01d254f4223b83831162566d4626428. It is recommended to upgrade the affected component.
Published · last modified .
CVSS v3 metric
CVSS v3 base score 5.3 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L.
EPSS exploit prediction
EPSS: 0.008 (54.4th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 54th percentile — 54.4% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.008 · newest: 0.008 · change: 0.000
Affected products
- Open5gs
- Open5gs — versions 2.7.0, 2.7.1, 2.7.2
Weakness classification (CWE)
Public proof-of-concept exploits
References
- vuldb.com/ (technical-description, VDB Entry, Third Party Advisory, vdb-entry)
- vuldb.com/ (signature, Permissions Required, permissions-required, VDB Entry)
- vuldb.com/ (VDB Entry, Third Party Advisory, third-party-advisory)
- vuldb.com/ (third-party-advisory)
- github.com/open5gs/open5gs/issues/3950 (issue-tracking, Issue Tracking)
- github.com/open5gs/open5gs/issues/3950 (issue-tracking, Issue Tracking)
- github.com/user-attachments/files/21030801/newdata_for_ngap.zip (Exploit, exploit)
- github.com/open5gs/open5gs/commit/bca0a7b6e01d254f4223b83831162566d4626428 (Patch, patch)
- github.com/open5gs/open5gs/releases/tag/v2.7.6 (Release Notes, patch)
- github.com/ZHENGHAOHELLO/BugReport/blob/main/CVE-2025-8804 (related)
Frequently asked questions
- What is CVE-2025-8804?
- CVE-2025-8804 is a medium-severity vulnerability in Open5gs, classified under Reachable Assertion. CVSS score: 5.3/10. Published 2025-08-10.
- How severe is CVE-2025-8804?
- Medium severity. CVSS v3 base score is 5.3 out of 10.
- Is CVE-2025-8804 known to be exploited?
- 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.