{"id":"CVE-2026-90707","title":"A security flaw has been discovered in Open5GS up to 2.7.x","summary":"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…","severity":"high","cvss":8.3,"cvssVector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:L/A:L","cwe":["CWE-119","CWE-416"],"product":"Open5GS","affected":["Open5GS 2.0","Open5GS 2.1","Open5GS 2.2","Open5GS 2.3","Open5GS 2.4","Open5GS 2.5","Open5GS 2.6","Open5GS 2.7"],"published":"2026-09-14","updated":"2026-09-15","sourceUpdated":"2026-09-15T14:17:32.230","source":"NVD","sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2026-90707","references":[{"url":"https://github.com/open5gs/open5gs/","label":"cna@vuldb.com"},{"url":"https://github.com/open5gs/open5gs/commit/ddd683a35f8aaac2b7b9884a24cd53bddfc65238","label":"cna@vuldb.com"},{"url":"https://github.com/open5gs/open5gs/pull/4698","label":"cna@vuldb.com"},{"url":"https://vuldb.com/cve/CVE-2026-90707","label":"cna@vuldb.com"},{"url":"https://vuldb.com/submit/918267","label":"cna@vuldb.com"},{"url":"https://vuldb.com/vuln/403249","label":"cna@vuldb.com"},{"url":"https://vuldb.com/vuln/403249/cti","label":"cna@vuldb.com"}],"tags":["nvd","cve.org"],"ssvc":{"exploitation":"none","automatable":"yes","technicalImpact":"partial","timestamp":"2026-09-15T13:33:46.758197Z"},"epss":0.00313,"epssPercentile":0.2448,"ingestedAt":"2026-09-14T15:23:07.462Z","slug":"CVE-2026-90707","body":"## Overview\n\nA 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.\n\n## Remediation\n\nRefer to the linked advisories for vendor-supplied fixes and affected version ranges.","depth":"twilight","depthScore":46,"depthScoreParts":{"impact":45.7,"likelihood":0.1,"exploitation":0,"ransomware":0},"changes":[]}