{"resultsPerPage":1,"startIndex":0,"totalResults":1,"format":"NVD_CVE","version":"2.0","timestamp":"2026-08-04T23:26:28.365","vulnerabilities":[{"cve":{"id":"CVE-2022-0023","sourceIdentifier":"psirt@paloaltonetworks.com","published":"2022-04-13T19:15:09.057","lastModified":"2026-06-17T04:19:54.507","vulnStatus":"Modified","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"}],"affected":[{"source":"psirt@paloaltonetworks.com","affectedData":[{"vendor":"Palo Alto Networks","product":"PAN-OS","versions":[{"version":"10.2.*","status":"unaffected"},{"version":"8.1","lessThan":"8.1.22","versionType":"custom","status":"affected","changes":[{"at":"8.1.22","status":"unaffected"}]},{"version":"9.1","lessThan":"9.1.13","versionType":"custom","status":"affected","changes":[{"at":"9.1.13","status":"unaffected"}]},{"version":"10.1","lessThan":"10.1.5","versionType":"custom","status":"affected","changes":[{"at":"10.1.5","status":"unaffected"}]},{"version":"10.0","lessThan":"10.0.10","versionType":"custom","status":"affected","changes":[{"at":"10.0.10","status":"unaffected"}]},{"version":"9.0","lessThan":"9.0.16","versionType":"custom","status":"affected","changes":[{"at":"9.0.16","status":"unaffected"}]}]},{"vendor":"Palo Alto Networks","product":"Prisma Access","versions":[{"version":"3.0 Preferred, Innovation","status":"unaffected"},{"version":"2.2 Preferred","status":"unaffected"},{"version":"2.1 Preferred, Innovation","status":"unaffected"}]}]}],"metrics":{"cvssMetricV31":[{"source":"psirt@paloaltonetworks.com","type":"Secondary","cvssData":{"version":"3.1","vectorString":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H","baseScore":5.9,"baseSeverity":"MEDIUM","attackVector":"NETWORK","attackComplexity":"HIGH","privilegesRequired":"NONE","userInteraction":"NONE","scope":"UNCHANGED","confidentialityImpact":"NONE","integrityImpact":"NONE","availabilityImpact":"HIGH"},"exploitabilityScore":2.2,"impactScore":3.6},{"source":"nvd@nist.gov","type":"Primary","cvssData":{"version":"3.1","vectorString":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H","baseScore":5.9,"baseSeverity":"MEDIUM","attackVector":"NETWORK","attackComplexity":"HIGH","privilegesRequired":"NONE","userInteraction":"NONE","scope":"UNCHANGED","confidentialityImpact":"NONE","integrityImpact":"NONE","availabilityImpact":"HIGH"},"exploitabilityScore":2.2,"impactScore":3.6}],"cvssMetricV2":[{"source":"nvd@nist.gov","type":"Primary","cvssData":{"version":"2.0","vectorString":"AV:N/AC:M/Au:N/C:N/I:N/A:P","baseScore":4.3,"accessVector":"NETWORK","accessComplexity":"MEDIUM","authentication":"NONE","confidentialityImpact":"NONE","integrityImpact":"NONE","availabilityImpact":"PARTIAL"},"baseSeverity":"MEDIUM","exploitabilityScore":8.6,"impactScore":2.9,"acInsufInfo":false,"obtainAllPrivilege":false,"obtainUserPrivilege":false,"obtainOtherPrivilege":false,"userInteractionRequired":false}]},"weaknesses":[{"source":"psirt@paloaltonetworks.com","type":"Secondary","description":[{"lang":"en","value":"CWE-755"}]},{"source":"nvd@nist.gov","type":"Primary","description":[{"lang":"en","value":"CWE-755"}]}],"configurations":[{"nodes":[{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":true,"criteria":"cpe:2.3:o:paloaltonetworks:pan-os:*:*:*:*:*:*:*:*","versionStartIncluding":"8.1.0","versionEndExcluding":"8.1.22","matchCriteriaId":"AC3526AD-4E39-4D8D-9265-1EB1948081D5"},{"vulnerable":true,"criteria":"cpe:2.3:o:paloaltonetworks:pan-os:*:*:*:*:*:*:*:*","versionStartIncluding":"9.0.0","versionEndExcluding":"9.0.16","matchCriteriaId":"0E3757E3-17C0-4D42-A31A-78F40A774F41"},{"vulnerable":true,"criteria":"cpe:2.3:o:paloaltonetworks:pan-os:*:*:*:*:*:*:*:*","versionStartIncluding":"9.1.0","versionEndExcluding":"9.1.13","matchCriteriaId":"9AB9A952-7A40-40C9-A8B4-2227F18555B4"},{"vulnerable":true,"criteria":"cpe:2.3:o:paloaltonetworks:pan-os:*:*:*:*:*:*:*:*","versionStartIncluding":"10.0.0","versionEndExcluding":"10.0.10","matchCriteriaId":"9B2FCE56-9375-4F9A-8E4F-1573B64665CA"},{"vulnerable":true,"criteria":"cpe:2.3:o:paloaltonetworks:pan-os:*:*:*:*:*:*:*:*","versionStartIncluding":"10.1.0","versionEndExcluding":"10.1.5","matchCriteriaId":"7EDCD5AD-A5F9-41CE-8D23-53C2457FFFD9"}]}]}],"references":[{"url":"https://security.paloaltonetworks.com/CVE-2022-0023","source":"psirt@paloaltonetworks.com","tags":["Vendor Advisory"]},{"url":"https://security.paloaltonetworks.com/CVE-2022-0023","source":"af854a3a-2127-422b-91ae-364da2661108","tags":["Vendor Advisory"]}]}}]}