CVE-2026-90707CWE-119CWE-416

CVE-2026-90707

High · published September 14, 2026

CVSS v3.1
8.3
EPSS
1%
Percentile
43.8
In the wild
Unconfirmed
What it is

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.

The record
Technical detail
CVSS v3.1
8.3 · HIGH
Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:L/A:L
CVSS v4.0
6.9 · CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:L/VA:L/SC:L/SI:L/SA:L/E:X
EPSS
0.00527 · 43.8th percentile
Weaknesses
CWE-119 · Improper Restriction of Operations within the Bounds of a Memory Buffer; CWE-416 · Use After Free
Published
2026-09-14T15:17Z
References (7)
https://github.com/open5gs/open5gs/ · [email protected]https://github.com/open5gs/open5gs/commit/ddd683a35f8aaac2b7b9884a24cd53bddfc65238 · [email protected]https://github.com/open5gs/open5gs/pull/4698 · [email protected]https://vuldb.com/cve/CVE-2026-90707 · [email protected]https://vuldb.com/submit/918267 · [email protected]https://vuldb.com/vuln/403249 · [email protected]https://vuldb.com/vuln/403249/cti · [email protected]
EPSS history
Timeline
  • 17 SEP 03:33Z
    EPSS moved — → 0%
    epss
  • 14 SEP 10:45Z
    Open5GS Old AMF Discovery Fallback nnrf-handler.c amf_nnrf_try_old_amf_discovery_fallback use after free
    cvelistv5