{"dataType": "CVE_RECORD", "cveMetadata": {"state": "PUBLISHED", "cveId": "CVE-2026-75439", "assignerOrgId": "8254265b-2729-46b6-b9e3-3dfca2d5bfca", "assignerShortName": "mitre", "dateUpdated": "2026-09-04T20:16:31.109Z", "dateReserved": "2026-08-17T00:00:00.000Z", "datePublished": "2026-09-04T00:00:00.000Z"}, "containers": {"cna": {"providerMetadata": {"orgId": "8254265b-2729-46b6-b9e3-3dfca2d5bfca", "shortName": "mitre", "dateUpdated": "2026-09-04T20:16:31.109Z"}, "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"}]}]}}, "dataVersion": "5.2"}

{}

{"affected": [{"affectedData": [{"product": "n/a", "vendor": "n/a", "versions": [{"status": "affected", "version": "n/a"}]}], "source": "cve@mitre.org"}], "cveTags": [], "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"}], "id": "CVE-2026-75439", "lastModified": "2026-09-04T21:17:25.583", "metrics": {}, "published": "2026-09-04T21:17:25.583", "references": [{"source": "cve@mitre.org", "url": "https://gist.github.com/hackeryounow/0f434c03008462e6eec3b43ed3cd12d8"}, {"source": "cve@mitre.org", "url": "https://github.com/free5gc/free5gc/issues/1059"}, {"source": "cve@mitre.org", "url": "https://github.com/free5gc/free5gc/issues/1059.https://github.com/free5gc/go-upf/pull/97"}, {"source": "cve@mitre.org", "url": "https://github.com/free5gc/go-upf/pull/97"}, {"source": "cve@mitre.org", "url": "https://github.com/hackeryounow/5GCVulDB/tree/main/CVE-2026-75439"}], "sourceIdentifier": "cve@mitre.org", "vulnStatus": "Received"}

{}

{"affected": [{"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "semver", "value": "4.2.2"}}], "enrichment": {"confidence": 75.0, "confidence_source": "inferred", "scores": [{"score": 75.0, "source": "inferred"}, {"score": 100.0, "source": "matching"}]}, "original": {"product": "n/a", "source": "cna", "vendor": "n/a"}, "product": "upf", "vendor": "free5gc"}], "created": "2026-09-04T22:00:06.285449+00:00", "title": "Remote Denial of Service in Free5GC UPF Component", "updated": "2026-09-05T02:15:06.491871+00:00", "vendors": ["free5gc", "free5gc$PRODUCT$upf"], "weaknesses": ["CWE-400"]}