{"id":"CVE-2026-75439","state":"PUBLISHED","title":"An issue in Free5GC v.4.2.2 allows a remote attacker to cause a denial of service via the UPF component","description":"An issue in Free5GC v.4.2.2 allows a remote attacker to cause a denial of service via the UPF component","publishedAt":"2026-09-04T00:00:00.000Z","updatedAt":"2026-09-14T13:10:36.418Z","severity":{"score":7.5,"label":"High","version":"3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","source":"CISA-ADP"},"assigner":"mitre","products":["n/a n/a"],"affected":[{"vendor":"n/a","product":"n/a","versions":[{"version":"n/a","status":"affected"}]}],"references":["https://github.com/free5gc/free5gc/issues/1059","https://github.com/free5gc/go-upf/pull/97","https://gist.github.com/hackeryounow/0f434c03008462e6eec3b43ed3cd12d8","https://github.com/hackeryounow/5GCVulDB/tree/main/CVE-2026-75439","https://github.com/free5gc/free5gc/issues/1059.https://github.com/free5gc/go-upf/pull/97"],"weaknesses":["CWE-476"],"ingestedAt":"2026-10-29T20:12:58.252Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2026/75xxx/CVE-2026-75439.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-75439","state":"PUBLISHED","datePublished":"2026-09-04T00:00:00.000Z","dateUpdated":"2026-09-14T13:10:36.418Z","assignerShortName":"mitre","assignerOrgId":"8254265b-2729-46b6-b9e3-3dfca2d5bfca","dateReserved":"2026-08-17T00:00:00.000Z"},"containers":{"cna":{"descriptions":[{"lang":"en","value":"An issue in Free5GC v.4.2.2 allows a remote attacker to cause a denial of service via the UPF component"}],"affected":[{"vendor":"n/a","product":"n/a","versions":[{"version":"n/a","status":"affected"}]}],"references":[{"url":"https://github.com/free5gc/free5gc/issues/1059"},{"url":"https://github.com/free5gc/go-upf/pull/97"},{"url":"https://gist.github.com/hackeryounow/0f434c03008462e6eec3b43ed3cd12d8"},{"url":"https://github.com/hackeryounow/5GCVulDB/tree/main/CVE-2026-75439"},{"url":"https://github.com/free5gc/free5gc/issues/1059.https://github.com/free5gc/go-upf/pull/97"}],"problemTypes":[{"descriptions":[{"type":"text","lang":"en","description":"n/a"}]}],"providerMetadata":{"shortName":"mitre","orgId":"8254265b-2729-46b6-b9e3-3dfca2d5bfca","dateUpdated":"2026-09-04T20:16:31.109Z"}},"adp":[{"title":"CISA ADP Vulnrichment","metrics":[{"cvssV3_1":{"scope":"UNCHANGED","version":"3.1","baseScore":7.5,"attackVector":"NETWORK","baseSeverity":"HIGH","vectorString":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","integrityImpact":"NONE","userInteraction":"NONE","attackComplexity":"LOW","availabilityImpact":"HIGH","privilegesRequired":"NONE","confidentialityImpact":"NONE"}},{"other":{"type":"ssvc","content":{"timestamp":"2026-09-14T13:10:31.465834Z","id":"CVE-2026-75439","options":[{"Exploitation":"poc"},{"Automatable":"yes"},{"Technical Impact":"partial"}],"role":"CISA Coordinator","version":"2.0.3"}}}],"problemTypes":[{"descriptions":[{"cweId":"CWE-476","type":"CWE","lang":"en","description":"CWE-476 NULL Pointer Dereference"}]}],"providerMetadata":{"shortName":"CISA-ADP","orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","dateUpdated":"2026-09-14T13:10:36.418Z"}}]}}}