{"id":"CVE-2026-1973","summary":"Free5GC SMF establishPfcpSession null pointer dereference","details":"A vulnerability was determined in Free5GC up to 4.1.0. The impacted element is the function establishPfcpSession of the component SMF. Executing a manipulation can lead to null pointer dereference. The attack may be launched remotely. The exploit has been publicly disclosed and may be utilized. It is best practice to apply a patch to resolve this issue.","modified":"2026-09-04T03:30:53.792151813Z","published":"2026-02-06T01:32:08.923Z","database_specific":{"cwe_ids":["CWE-404","CWE-476"],"osv_generated_from":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/1xxx/CVE-2026-1973.json","cna_assigner":"VulDB"},"references":[{"type":"WEB","url":"https://github.com/free5gc/free5gc/"},{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/1xxx/CVE-2026-1973.json"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-1973"},{"type":"ADVISORY","url":"https://vuldb.com/?id.344495"},{"type":"ADVISORY","url":"https://vuldb.com/?submit.743236"},{"type":"REPORT","url":"https://github.com/free5gc/free5gc/issues/815"},{"type":"REPORT","url":"https://github.com/free5gc/free5gc/issues/815#issue-3832032062"},{"type":"REPORT","url":"https://vuldb.com/?ctiid.344495"},{"type":"FIX","url":"https://github.com/free5gc/smf/pull/189"}],"affected":[{"ranges":[{"type":"GIT","repo":"https://github.com/free5gc/free5gc","events":[{"introduced":"909d7d46527c6570c153896fa58020255a0e1ca8"},{"last_affected":"de6bdb7a0d5963266c893cca59c86f55df348f57"}],"database_specific":{"cpe":"cpe:2.3:a:free5gc:free5gc:*:*:*:*:*:*:*:*","extracted_events":[{"introduced":"4.0"},{"last_affected":"4.0"},{"introduced":"4.1.0"},{"last_affected":"4.1.0"},{"introduced":"0"}],"source":["AFFECTED_FIELD","CPE_RANGE"]}}],"versions":["4.0","4.1.0","v4.1.0","v4.0.1","v4.0.0"],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-1973.json"}}],"schema_version":"1.9.0","severity":[{"type":"CVSS_V4","score":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:P"}]}