{"id":"CVE-2026-44323","sourceIdentifier":"security-advisories@github.com","published":"2026-05-27T17:16:37.627","lastModified":"2026-10-14T20:10:00.190","vulnStatus":"Analyzed","cveTags":[],"descriptions":[{"lang":"en","value":"free5GC is an open-source implementation of the 5G core network. Prior to 4.2.2, free5GC's UDR nudr-dr DELETE /subscription-data/{ueId}/{servingPlmnId}/ee-subscriptions/{subsId}/amf-subscriptions handler contains a nil-pointer dereference reachable from a single authenticated request, after one preparatory authenticated EE-subscription create. The handler checks _, ok = UESubsData.EeSubscriptionCollection[subsId] and sets a 404 problem-details on the miss path, but then continues to UESubsData.EeSubscriptionCollection[subsId].AmfSubscriptionInfos -- dereferencing the same missing entry instead of returning. Gin recovery converts the panic into HTTP 500, but the endpoint remains repeatedly panicable. This vulnerability is fixed in 4.2.2."},{"lang":"es","value":"free5GC es una implementación de código abierto de la red central 5G. Antes de la versión 4.2.2, el gestor UDR nudr-dr DELETE /subscription-data/{ueId}/{servingPlmnId}/ee-subscriptions/{subsId}/amf-subscriptions de free5GC contiene una desreferencia de puntero nulo accesible desde una única solicitud autenticada, después de una creación preparatoria autenticada de suscripción EE. El gestor comprueba _, ok = UESubsData.EeSubscriptionCollection[subsId] y establece un 404 problem-details en la ruta de fallo, pero luego continúa a UESubsData.EeSubscriptionCollection[subsId].AmfSubscriptionInfos -- desreferenciando la misma entrada faltante en lugar de retornar. La recuperación de Gin convierte el pánico en HTTP 500, pero el endpoint permanece repetidamente propenso a pánicos. Esta vulnerabilidad está corregida en la versión 4.2.2."}],"affected":[{"source":"security-advisories@github.com","affectedData":[{"vendor":"free5gc","product":"free5gc","versions":[{"version":"< 4.2.2","status":"affected"}]}]}],"metrics":{"cvssMetricV31":[{"source":"security-advisories@github.com","type":"Secondary","cvssData":{"version":"3.1","vectorString":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L","baseScore":4.3,"baseSeverity":"MEDIUM","attackVector":"NETWORK","attackComplexity":"LOW","privilegesRequired":"LOW","userInteraction":"NONE","scope":"UNCHANGED","confidentialityImpact":"NONE","integrityImpact":"NONE","availabilityImpact":"LOW"},"exploitabilityScore":2.8,"impactScore":1.4},{"source":"nvd@nist.gov","type":"Primary","cvssData":{"version":"3.1","vectorString":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H","baseScore":6.5,"baseSeverity":"MEDIUM","attackVector":"NETWORK","attackComplexity":"LOW","privilegesRequired":"LOW","userInteraction":"NONE","scope":"UNCHANGED","confidentialityImpact":"NONE","integrityImpact":"NONE","availabilityImpact":"HIGH"},"exploitabilityScore":2.8,"impactScore":3.6}],"ssvcV203":[{"source":"134c704f-9b21-4f2e-91b3-4a467353bcc0","ssvcData":{"timestamp":"2026-06-01T17:04:56.772232Z","id":"CVE-2026-44323","options":[{"exploitation":"none"},{"automatable":"no"},{"technicalImpact":"partial"}],"role":"CISA Coordinator","version":"2.0.3"}}]},"weaknesses":[{"source":"security-advisories@github.com","type":"Secondary","description":[{"lang":"en","value":"CWE-476"}]}],"configurations":[{"nodes":[{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":true,"criteria":"cpe:2.3:a:free5gc:free5gc:*:*:*:*:*:*:*:*","versionEndExcluding":"4.2.2","matchCriteriaId":"EF7EBB95-EB4E-44C5-BF0A-9C99B0A7775F"}]}]}],"references":[{"url":"https://github.com/free5gc/free5gc/issues/919","source":"security-advisories@github.com","tags":["Exploit","Issue Tracking"]},{"url":"https://github.com/free5gc/free5gc/security/advisories/GHSA-4rqf-grm6-vf75","source":"security-advisories@github.com","tags":["Exploit","Vendor Advisory"]},{"url":"https://github.com/free5gc/udr/commit/8a1d3c63be99d378806d771f086ff32f1867da99","source":"security-advisories@github.com","tags":["Patch"]},{"url":"https://github.com/free5gc/udr/pull/60","source":"security-advisories@github.com","tags":["Issue Tracking","Patch"]}]}