Buffer overflow in Open5gs
CVE-2025-15555
A security flaw has been discovered in Open5GS up to 2.7.6. Affected by this vulnerability is the function hss_ogs_diam_cx_mar_cb of the file src/hss/hss-cx-path.c of the component VoLTE Cx-Test. The manipulation of the argument OGS_KEY_LEN results in stack-based buffer overflow. The attack may be launched remotely. The patch is identified as 54dda041211098730221d0ae20a2f9f9173e7a21. A patch should be applied to remediate this issue.
Vulnerability class: Buffer Overflow
Published · last modified .
CVSS v3 metric
CVSS v3 base score 7.3 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L.
EPSS exploit prediction
EPSS: 0.005 (43.8th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 44th percentile — 43.8% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.005 · newest: 0.005 · change: +0.000
Affected products
- Open5gs
- Open5gs — versions 2.7.0, 2.7.1, 2.7.2
Weakness classification (CWE)
References
- vuldb.com/vuln/343795 (technical-description, vdb-entry)
- vuldb.com/vuln/343795/cti (signature, permissions-required)
- vuldb.com/submit/741901 (third-party-advisory)
- github.com/open5gs/open5gs/issues/4177 (issue-tracking, Exploit, Third Party Advisory, Issue Tracking)
- github.com/open5gs/open5gs/issues/4177 (issue-tracking, Exploit, Third Party Advisory, Issue Tracking)
- github.com/open5gs/open5gs/commit/54dda041211098730221d0ae20a2f9f9173e7a21 (Patch, patch)
- github.com/open5gs/open5gs/ (Product, product)
Frequently asked questions
- What is CVE-2025-15555?
- CVE-2025-15555 is a high-severity vulnerability in Open5gs, classified under Improper Restriction of Operations within the Bounds of a Memory Buffer. CVSS score: 7.3/10. Published 2026-02-04.
- How severe is CVE-2025-15555?
- High severity. CVSS v3 base score is 7.3 out of 10.