{"id":"CVE-2026-8251","state":"PUBLISHED","title":"Open5GS SMF npcf-handler.c update_authorized_pcc_rule_and_qos denial of service","description":"A vulnerability was found in Open5GS up to 2.7.7. This impacts the function update_authorized_pcc_rule_and_qos of the file /src/smf/npcf-handler.c of the component SMF. Performing a manipulation results in denial of service. The attack is possible to be carried out remotely. The exploit has been made public and could be used. The project was informed of the problem early through an issue report but has not responded yet.","publishedAt":"2026-05-10T23:00:21.455Z","updatedAt":"2026-05-11T17:31:31.213Z","severity":{"score":5.3,"label":"Medium","version":"4.0","vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:P","source":"VulDB"},"assigner":"VulDB","products":["n/a Open5GS"],"affected":[{"vendor":"n/a","product":"Open5GS","versions":[{"version":"2.7.0","status":"affected"},{"version":"2.7.1","status":"affected"},{"version":"2.7.2","status":"affected"},{"version":"2.7.3","status":"affected"},{"version":"2.7.4","status":"affected"},{"version":"2.7.5","status":"affected"},{"version":"2.7.6","status":"affected"},{"version":"2.7.7","status":"affected"}],"cpes":["cpe:2.3:a:open5gs:open5gs:*:*:*:*:*:*:*:*"],"modules":["SMF"]}],"references":["https://vuldb.com/vuln/362548","https://vuldb.com/vuln/362548/cti","https://vuldb.com/submit/808480","https://github.com/open5gs/open5gs/issues/4445","https://github.com/open5gs/open5gs/"],"weaknesses":["CWE-404"],"ingestedAt":"2026-10-29T20:13:26.108Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2026/8xxx/CVE-2026-8251.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-8251","state":"PUBLISHED","datePublished":"2026-05-10T23:00:21.455Z","dateUpdated":"2026-05-11T17:31:31.213Z","assignerShortName":"VulDB","assignerOrgId":"1af790b2-7ee1-4545-860a-a788eba489b5","dateReserved":"2026-05-10T14:40:06.984Z"},"containers":{"cna":{"title":"Open5GS SMF npcf-handler.c update_authorized_pcc_rule_and_qos denial of service","descriptions":[{"lang":"en","value":"A vulnerability was found in Open5GS up to 2.7.7. This impacts the function update_authorized_pcc_rule_and_qos of the file /src/smf/npcf-handler.c of the component SMF. Performing a manipulation results in denial of service. The attack is possible to be carried out remotely. The exploit has been made public and could be used. The project was informed of the problem early through an issue report but has not responded yet."}],"affected":[{"vendor":"n/a","product":"Open5GS","versions":[{"version":"2.7.0","status":"affected"},{"version":"2.7.1","status":"affected"},{"version":"2.7.2","status":"affected"},{"version":"2.7.3","status":"affected"},{"version":"2.7.4","status":"affected"},{"version":"2.7.5","status":"affected"},{"version":"2.7.6","status":"affected"},{"version":"2.7.7","status":"affected"}],"cpes":["cpe:2.3:a:open5gs:open5gs:*:*:*:*:*:*:*:*"],"modules":["SMF"]}],"references":[{"url":"https://vuldb.com/vuln/362548","name":"VDB-362548 | Open5GS SMF npcf-handler.c update_authorized_pcc_rule_and_qos denial of service","tags":["vdb-entry","technical-description"]},{"url":"https://vuldb.com/vuln/362548/cti","name":"VDB-362548 | CTI Indicators (IOB, IOC, TTP, IOA)","tags":["signature","permissions-required"]},{"url":"https://vuldb.com/submit/808480","name":"Submit #808480 | Open5gs SMF v2.7.7 Denial of Service","tags":["third-party-advisory"]},{"url":"https://github.com/open5gs/open5gs/issues/4445","tags":["exploit","issue-tracking"]},{"url":"https://github.com/open5gs/open5gs/","tags":["product"]}],"metrics":[{"cvssV4_0":{"version":"4.0","baseScore":5.3,"vectorString":"CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:P","baseSeverity":"MEDIUM"}},{"cvssV3_1":{"version":"3.1","baseScore":4.3,"vectorString":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L/E:P/RL:X/RC:R","baseSeverity":"MEDIUM"}},{"cvssV3_0":{"version":"3.0","baseScore":4.3,"vectorString":"CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L/E:P/RL:X/RC:R","baseSeverity":"MEDIUM"}},{"cvssV2_0":{"version":"2.0","baseScore":4,"vectorString":"AV:N/AC:L/Au:S/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":"2026-05-10T23:00:21.455Z"},"timeline":[{"time":"2026-05-10T00:00:00.000Z","lang":"en","value":"Advisory disclosed"},{"time":"2026-05-10T02:00:00.000Z","lang":"en","value":"VulDB entry created"},{"time":"2026-05-10T16:45:22.000Z","lang":"en","value":"VulDB entry last update"}],"credits":[{"lang":"en","value":"FrankLin (VulDB User)","type":"reporter"},{"lang":"en","value":"VulDB CNA Team","type":"coordinator"}]},"adp":[{"title":"CISA ADP Vulnrichment","metrics":[{"other":{"type":"ssvc","content":{"timestamp":"2026-05-11T15:57:33.877164Z","id":"CVE-2026-8251","options":[{"Exploitation":"poc"},{"Automatable":"no"},{"Technical Impact":"partial"}],"role":"CISA Coordinator","version":"2.0.3"}}}],"providerMetadata":{"shortName":"CISA-ADP","orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","dateUpdated":"2026-05-11T17:31:31.213Z"}}]}}}