Vulnerability in Open5gs
CVE-2026-10565
A security flaw has been discovered in Open5GS up to 2.7.6. The impacted element is the function gmm_state_security_mode of the file src/amf/gmm-sm.c of the component NGAP Handover. Performing a manipulation results in race condition. The attack can be initiated remotely. The complexity of an attack is rather high. The exploitability is regarded as difficult. The exploit has been released to the public and may be used for attacks. The pull request to fix this issue awaits acceptance.
Vulnerability class: Race Condition
Published · last modified .
CVSS v3 metric
CVSS v3 base score 3.1 (Low). Vector: CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:L.
EPSS exploit prediction
EPSS: 0.002 (11.8th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 12th percentile — 11.8% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.002 · newest: 0.002 · change: 0.000
Affected products
- Open5gs — versions 2.7.0, 2.7.1, 2.7.2
Weakness classification (CWE)
References
- vuldb.com/vuln/367672 (technical-description, vdb-entry)
- vuldb.com/vuln/367672/cti (signature, permissions-required)
- vuldb.com/cve/CVE-2026-10565 (third-party-advisory)
- vuldb.com/submit/818938 (third-party-advisory)
- github.com/open5gs/open5gs/issues/4497 (issue-tracking)
- github.com/open5gs/open5gs/pull/4501 (issue-tracking, patch)
- github.com/user-attachments/files/27111025/N2-SMC-Concurrent.zip (exploit)
- github.com/open5gs/open5gs/ (product)
Frequently asked questions
- What is CVE-2026-10565?
- CVE-2026-10565 is a low-severity vulnerability in Open5gs, classified under Concurrent Execution using Shared Resource with Improper Synchronization (Race Condition). CVSS score: 3.1/10. Published 2026-06-02.
- How severe is CVE-2026-10565?
- Low severity. CVSS v3 base score is 3.1 out of 10.