CVE-2026-90707
highA security flaw has been discovered in Open5GS up to 2.7.x.
A security flaw has been discovered in Open5GS up to 2.7.x. Affected is the function amf_nnrf_try_old_amf_discovery_fallback of the file src/amf/nnrf-handler.c of the component Old AMF Discovery Fallback. The manipulation of the argument discovery_option results in use after free. The attack may be performed from remote. The patch is identified as ddd683a35f8aaac2b7b9884a24cd53bddfc65238. Applying a patch is advised to resolve this issue.
CVSS
8.3
8.3 (CVSS v3.1)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:L/A:L Severity source: NVD CVSS v3.1 (cna@vuldb.com)
Timeline (UTC)
Published: 2026-09-14 11:17
Modified: 2026-09-15 14:17
NVD status: Deferred
Last synced 2 days ago
Verified against the source API 2026-10-27 06:52 UTC
Exploitation
Not listed in CISA KEV (as of last catalog sync)
Absence from KEV does not mean a CVE is not exploited. Exploitation status: unknown (no authoritative evidence in our sources).
Affected products
Not reported by the source (unknown — not "none").
Weakness classification (CWE)
Source: NVD / CISA. “NVD-CWE-Other” and “NVD-CWE-noinfo” mean NVD could not assign a specific weakness.
Mitigation & advisories
No vendor advisory or patch reference tagged by NVD. Check the references below.
References
- https://github.com/open5gs/open5gs/ cna@vuldb.com
- https://github.com/open5gs/open5gs/commit/ddd683a35f8aaac2b7b9884a24cd53bddfc65238 cna@vuldb.com
- https://github.com/open5gs/open5gs/pull/4698 cna@vuldb.com
- https://vuldb.com/cve/CVE-2026-90707 cna@vuldb.com
- https://vuldb.com/submit/918267 cna@vuldb.com
- https://vuldb.com/vuln/403249 cna@vuldb.com
- https://vuldb.com/vuln/403249/cti cna@vuldb.com
Data sources
NVD CVE API 2.0 — fetched 2026-10-27 06:52 UTC · record ↗