{"affected":[{"affectedData":[{"product":"PAN-OS","vendor":"Palo Alto Networks","versions":[{"status":"unaffected","version":"10.2.*"},{"changes":[{"at":"8.1.22","status":"unaffected"}],"lessThan":"8.1.22","status":"affected","version":"8.1","versionType":"custom"},{"changes":[{"at":"9.1.13","status":"unaffected"}],"lessThan":"9.1.13","status":"affected","version":"9.1","versionType":"custom"},{"changes":[{"at":"10.1.5","status":"unaffected"}],"lessThan":"10.1.5","status":"affected","version":"10.1","versionType":"custom"},{"changes":[{"at":"10.0.10","status":"unaffected"}],"lessThan":"10.0.10","status":"affected","version":"10.0","versionType":"custom"},{"changes":[{"at":"9.0.16","status":"unaffected"}],"lessThan":"9.0.16","status":"affected","version":"9.0","versionType":"custom"}]},{"product":"Prisma Access","vendor":"Palo Alto Networks","versions":[{"status":"unaffected","version":"3.0 Preferred, Innovation"},{"status":"unaffected","version":"2.2 Preferred"},{"status":"unaffected","version":"2.1 Preferred, Innovation"}]}],"source":"psirt@paloaltonetworks.com"}],"configurations":[{"nodes":[{"cpeMatch":[{"criteria":"cpe:2.3:o:paloaltonetworks:pan-os:*:*:*:*:*:*:*:*","matchCriteriaId":"AC3526AD-4E39-4D8D-9265-1EB1948081D5","versionEndExcluding":"8.1.22","versionStartIncluding":"8.1.0","vulnerable":true},{"criteria":"cpe:2.3:o:paloaltonetworks:pan-os:*:*:*:*:*:*:*:*","matchCriteriaId":"0E3757E3-17C0-4D42-A31A-78F40A774F41","versionEndExcluding":"9.0.16","versionStartIncluding":"9.0.0","vulnerable":true},{"criteria":"cpe:2.3:o:paloaltonetworks:pan-os:*:*:*:*:*:*:*:*","matchCriteriaId":"9AB9A952-7A40-40C9-A8B4-2227F18555B4","versionEndExcluding":"9.1.13","versionStartIncluding":"9.1.0","vulnerable":true},{"criteria":"cpe:2.3:o:paloaltonetworks:pan-os:*:*:*:*:*:*:*:*","matchCriteriaId":"9B2FCE56-9375-4F9A-8E4F-1573B64665CA","versionEndExcluding":"10.0.10","versionStartIncluding":"10.0.0","vulnerable":true},{"criteria":"cpe:2.3:o:paloaltonetworks:pan-os:*:*:*:*:*:*:*:*","matchCriteriaId":"7EDCD5AD-A5F9-41CE-8D23-53C2457FFFD9","versionEndExcluding":"10.1.5","versionStartIncluding":"10.1.0","vulnerable":true}],"negate":false,"operator":"OR"}]}],"cveTags":[],"descriptions":[{"lang":"en","value":"An improper handling of exceptional conditions vulnerability exists in the DNS proxy feature of Palo Alto Networks PAN-OS software that enables a meddler-in-the-middle (MITM) to send specifically crafted traffic to the firewall that causes the service to restart unexpectedly. Repeated attempts to send this request result in denial-of-service to all PAN-OS services by restarting the device in maintenance mode. This issue does not impact Panorama appliances and Prisma Access customers. This issue impacts: PAN-OS 8.1 versions earlier than PAN-OS 8.1.22; PAN-OS 9.0 versions earlier than PAN-OS 9.0.16; PAN-OS 9.1 versions earlier than PAN-OS 9.1.13; PAN-OS 10.0 versions earlier than PAN-OS 10.0.10; PAN-OS 10.1 versions earlier than PAN-OS 10.1.5. This issue does not impact PAN-OS 10.2."},{"lang":"es","value":"Se presenta una vulnerabilidad de manejo inapropiado de condiciones excepcionales en la función de proxy DNS del software PAN-OS de Palo Alto Networks que permite a un atacante de tipo meddler-in-the-middle (MITM) enviar tráfico específicamente diseñado al firewall que causa un reinicio no esperado del servicio. Los intentos repetidos de enviar esta petición resultan en una denegación de servicio a todos los servicios de PAN-OS, reiniciando el dispositivo en modo de mantenimiento. Este problema no afecta a dispositivos de Panorama ni a clientes de Prisma Access. Este problema afecta a: PAN-OS versiones anteriores a 8.1.22; PAN-OS 9.0 versiones anteriores a PAN-OS 9.0.16; PAN-OS 9.1 versiones anteriores a PAN-OS 9.1.13; PAN-OS 10.0 versiones anteriores a PAN-OS 10.0.10; PAN-OS 10.1 versiones anteriores a PAN-OS 10.1.5. Este problema no afecta a PAN-OS versión 10.2"}],"id":"CVE-2022-0023","lastModified":"2026-06-17T04:19:54.507","metrics":{"cvssMetricV2":[{"acInsufInfo":false,"baseSeverity":"MEDIUM","cvssData":{"accessComplexity":"MEDIUM","accessVector":"NETWORK","authentication":"NONE","availabilityImpact":"PARTIAL","baseScore":4.3,"confidentialityImpact":"NONE","integrityImpact":"NONE","vectorString":"AV:N/AC:M/Au:N/C:N/I:N/A:P","version":"2.0"},"exploitabilityScore":8.6,"impactScore":2.9,"obtainAllPrivilege":false,"obtainOtherPrivilege":false,"obtainUserPrivilege":false,"source":"nvd@nist.gov","type":"Primary","userInteractionRequired":false}],"cvssMetricV31":[{"cvssData":{"attackComplexity":"HIGH","attackVector":"NETWORK","availabilityImpact":"HIGH","baseScore":5.9,"baseSeverity":"MEDIUM","confidentialityImpact":"NONE","integrityImpact":"NONE","privilegesRequired":"NONE","scope":"UNCHANGED","userInteraction":"NONE","vectorString":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H","version":"3.1"},"exploitabilityScore":2.2,"impactScore":3.6,"source":"psirt@paloaltonetworks.com","type":"Secondary"},{"cvssData":{"attackComplexity":"HIGH","attackVector":"NETWORK","availabilityImpact":"HIGH","baseScore":5.9,"baseSeverity":"MEDIUM","confidentialityImpact":"NONE","integrityImpact":"NONE","privilegesRequired":"NONE","scope":"UNCHANGED","userInteraction":"NONE","vectorString":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H","version":"3.1"},"exploitabilityScore":2.2,"impactScore":3.6,"source":"nvd@nist.gov","type":"Primary"}]},"published":"2022-04-13T19:15:09.057","references":[{"source":"psirt@paloaltonetworks.com","tags":["Vendor Advisory"],"url":"https://security.paloaltonetworks.com/CVE-2022-0023"},{"source":"af854a3a-2127-422b-91ae-364da2661108","tags":["Vendor Advisory"],"url":"https://security.paloaltonetworks.com/CVE-2022-0023"}],"sourceIdentifier":"psirt@paloaltonetworks.com","vulnStatus":"Modified","weaknesses":[{"description":[{"lang":"en","value":"CWE-755"}],"source":"psirt@paloaltonetworks.com","type":"Secondary"},{"description":[{"lang":"en","value":"CWE-755"}],"source":"nvd@nist.gov","type":"Primary"}]}