Vulnerability Description
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 Score
HIGH
Related Weaknesses (CWE)
References
- https://github.com/open5gs/open5gs/
- https://github.com/open5gs/open5gs/commit/ddd683a35f8aaac2b7b9884a24cd53bddfc652
- https://github.com/open5gs/open5gs/pull/4698
- https://vuldb.com/cve/CVE-2026-90707
- https://vuldb.com/submit/918267
- https://vuldb.com/vuln/403249
- https://vuldb.com/vuln/403249/cti
FAQ
What is CVE-2026-90707?
CVE-2026-90707 is a vulnerability with a CVSS score of 8.3 (HIGH). 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 Fallb...
How severe is CVE-2026-90707?
CVE-2026-90707 has been rated HIGH with a CVSS base score of 8.3/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2026-90707?
Check the references section above for vendor advisories and patch information. Review vendor security bulletins for remediation guidance.