Vulnerability · Published Aug 30, 2026 · Assigned by VulDB
CVE-2026-82590Open5GS SMF nudm-handler.c smf_nudm_sdm_handle_get assertion
Medium 4.3
In plain English
A medium-severity security flaw in Open5GS. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.5% (higher than 46% of all known vulnerabilities).
Official description
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.
Affected products (as reported)
Weakness: CWE-617 · Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L/E:X/RL:O/RC:C
References
- VDB-397085 | Open5GS SMF nudm-handler.c smf_nudm_sdm_handle_get assertion vdb-entry, technical-description
- VDB-397085 | CTI Indicators (IOB, IOC, IOA) signature, permissions-required
- CVE-2026-82590 | CVE Analysis and Report third-party-advisory
- Submit #891893 | Open5gs SMF v2.7.7 Denial of Service third-party-advisory
- https://github.com/open5gs/open5gs/issues/4455 issue-tracking
- https://github.com/open5gs/open5gs/commit/4554405f29bffd7562abedbee63484825bd90cd5 patch
- https://github.com/open5gs/open5gs/releases/tag/v2.8.0 patch
- https://github.com/open5gs/open5gs/ product