Vulnerability in Open5gs
CVE-2026-82590
A weakness has been identified in Open5GS up to 2.7.7. The affected element is the function smf_nudm_sdm_handle_get of the file src/smf/nudm-handler.c of the component SMF. Executing a manipulation of the argument preemptCap can lead to reachable assertion. The attack may be launched remotely. Upgrading to version 2.8.0 is sufficient to fix this issue. This patch is called 4554405f29bffd7562abedbee63484825bd90cd5. You should upgrade the affected component.
Published · last modified .
CVSS v3 metric
CVSS v3 base score 4.3 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L.
EPSS exploit prediction
EPSS: 0.005 (44.4th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 44th percentile — 44.4% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.003 · newest: 0.005 · change: +0.002
Affected products
- Open5gs — versions 2.7.0, 2.7.1, 2.7.2
Weakness classification (CWE)
References
- vuldb.com/vuln/397085 (technical-description, vdb-entry)
- vuldb.com/vuln/397085/cti (signature, permissions-required)
- vuldb.com/cve/CVE-2026-82590 (third-party-advisory)
- vuldb.com/submit/891893 (third-party-advisory)
- github.com/open5gs/open5gs/issues/4455 (issue-tracking)
- github.com/open5gs/open5gs/commit/4554405f29bffd7562abedbee63484825bd90cd5 (patch)
- github.com/open5gs/open5gs/releases/tag/v2.8.0 (patch)
- github.com/open5gs/open5gs/ (product)
Frequently asked questions
- What is CVE-2026-82590?
- CVE-2026-82590 is a medium-severity vulnerability in Open5gs, classified under Reachable Assertion. CVSS score: 4.3/10. Published 2026-08-30.
- How severe is CVE-2026-82590?
- Medium severity. CVSS v3 base score is 4.3 out of 10.