{"id":"CVE-2026-5661","state":"PUBLISHED","title":"Free5GC NGSetupRequest denial of service","description":"A vulnerability was identified in Free5GC 4.2.0. This affects an unknown function of the component NGSetupRequest Handler. Such manipulation leads to denial of service. The attack may be launched remotely. The exploit is publicly available and might be used.","publishedAt":"2026-04-06T14:08:19.647Z","updatedAt":"2026-04-06T14:55:09.634Z","severity":{"score":6.9,"label":"Medium","version":"4.0","vector":"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","source":"VulDB"},"assigner":"VulDB","products":["n/a Free5GC"],"affected":[{"vendor":"n/a","product":"Free5GC","versions":[{"version":"4.2.0","status":"affected"}],"cpes":["cpe:2.3:a:free5gc:free5gc:*:*:*:*:*:*:*:*"],"modules":["NGSetupRequest Handler"]}],"references":["https://vuldb.com/vuln/355485","https://vuldb.com/vuln/355485/cti","https://vuldb.com/submit/785896","https://github.com/free5gc/free5gc/issues/832","https://github.com/free5gc/amf/pull/201","https://github.com/user-attachments/files/25581199/amfcfg.yaml","https://github.com/free5gc/free5gc/"],"weaknesses":["CWE-404"],"ingestedAt":"2026-10-29T20:12:32.778Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2026/5xxx/CVE-2026-5661.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-5661","state":"PUBLISHED","datePublished":"2026-04-06T14:08:19.647Z","dateUpdated":"2026-04-06T14:55:09.634Z","assignerShortName":"VulDB","assignerOrgId":"1af790b2-7ee1-4545-860a-a788eba489b5","dateReserved":"2026-04-06T07:48:14.498Z"},"containers":{"cna":{"title":"Free5GC NGSetupRequest denial of service","descriptions":[{"lang":"en","value":"A vulnerability was identified in Free5GC 4.2.0. This affects an unknown function of the component NGSetupRequest Handler. Such manipulation leads to denial of service. The attack may be launched remotely. The exploit is publicly available and might be used."}],"affected":[{"vendor":"n/a","product":"Free5GC","versions":[{"version":"4.2.0","status":"affected"}],"cpes":["cpe:2.3:a:free5gc:free5gc:*:*:*:*:*:*:*:*"],"modules":["NGSetupRequest Handler"]}],"references":[{"url":"https://vuldb.com/vuln/355485","name":"VDB-355485 | Free5GC NGSetupRequest denial of service","tags":["vdb-entry"]},{"url":"https://vuldb.com/vuln/355485/cti","name":"VDB-355485 | CTI Indicators (IOB, IOC, TTP)","tags":["signature","permissions-required"]},{"url":"https://vuldb.com/submit/785896","name":"Submit #785896 | Linux Foundation free5GC 4.2.0 State Synchronization Error","tags":["third-party-advisory"]},{"url":"https://github.com/free5gc/free5gc/issues/832","tags":["issue-tracking"]},{"url":"https://github.com/free5gc/amf/pull/201","tags":["issue-tracking","patch"]},{"url":"https://github.com/user-attachments/files/25581199/amfcfg.yaml","tags":["exploit"]},{"url":"https://github.com/free5gc/free5gc/","tags":["product"]}],"metrics":[{"cvssV4_0":{"version":"4.0","baseScore":6.9,"vectorString":"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","baseSeverity":"MEDIUM"}},{"cvssV3_1":{"version":"3.1","baseScore":5.3,"vectorString":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L/E:P/RL:X/RC:R","baseSeverity":"MEDIUM"}},{"cvssV3_0":{"version":"3.0","baseScore":5.3,"vectorString":"CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L/E:P/RL:X/RC:R","baseSeverity":"MEDIUM"}},{"cvssV2_0":{"version":"2.0","baseScore":5,"vectorString":"AV:N/AC:L/Au:N/C:N/I:N/A:P/E:POC/RL:ND/RC:UR"}}],"problemTypes":[{"descriptions":[{"cweId":"CWE-404","type":"CWE","lang":"en","description":"Denial of Service"}]}],"providerMetadata":{"shortName":"VulDB","orgId":"1af790b2-7ee1-4545-860a-a788eba489b5","dateUpdated":"2026-04-06T14:08:19.647Z"},"timeline":[{"time":"2026-04-06T00:00:00.000Z","lang":"en","value":"Advisory disclosed"},{"time":"2026-04-06T02:00:00.000Z","lang":"en","value":"VulDB entry created"},{"time":"2026-04-06T09:53:20.000Z","lang":"en","value":"VulDB entry last update"}],"credits":[{"lang":"en","value":"shovon0203 (VulDB User)","type":"reporter"}]},"adp":[{"title":"CISA ADP Vulnrichment","metrics":[{"other":{"type":"ssvc","content":{"timestamp":"2026-04-06T14:53:51.067978Z","id":"CVE-2026-5661","options":[{"Exploitation":"poc"},{"Automatable":"yes"},{"Technical Impact":"partial"}],"role":"CISA Coordinator","version":"2.0.3"}}}],"providerMetadata":{"shortName":"CISA-ADP","orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","dateUpdated":"2026-04-06T14:55:09.634Z"}}]}}}