{"affected":[{"affectedData":[{"product":"PAN-OS","vendor":"Palo Alto Networks","versions":[{"status":"unaffected","version":"10.1.*"},{"changes":[{"at":"9.0.14","status":"unaffected"}],"lessThan":"9.0.14","status":"affected","version":"9.0","versionType":"custom"},{"changes":[{"at":"8.1.20","status":"unaffected"}],"lessThan":"8.1.20","status":"affected","version":"8.1","versionType":"custom"},{"changes":[{"at":"9.1.9","status":"unaffected"}],"lessThan":"9.1.9","status":"affected","version":"9.1","versionType":"custom"},{"changes":[{"at":"10.0.1","status":"unaffected"}],"lessThan":"10.0.1","status":"affected","version":"10.0","versionType":"custom"}]},{"product":"Prisma Access","vendor":"Palo Alto Networks","versions":[{"status":"unaffected","version":"2.2 all"},{"status":"affected","version":"2.1 Preferred"},{"status":"unaffected","version":"2.1 Innovation"}]}],"source":"psirt@paloaltonetworks.com"}],"configurations":[{"nodes":[{"cpeMatch":[{"criteria":"cpe:2.3:o:paloaltonetworks:pan-os:*:*:*:*:*:*:*:*","matchCriteriaId":"97BB12BB-096E-4CCD-B5F4-55900801DF74","versionEndExcluding":"8.1.20","versionStartIncluding":"8.1.0","vulnerable":true},{"criteria":"cpe:2.3:o:paloaltonetworks:pan-os:*:*:*:*:*:*:*:*","matchCriteriaId":"E9EE274A-3AF1-4204-B43D-1EA54C6442CC","versionEndExcluding":"9.0.14","versionStartIncluding":"9.0.0","vulnerable":true},{"criteria":"cpe:2.3:o:paloaltonetworks:pan-os:*:*:*:*:*:*:*:*","matchCriteriaId":"5075D342-EE42-4659-BD55-2D9FE7496C34","versionEndExcluding":"9.1.9","versionStartIncluding":"9.1.0","vulnerable":true},{"criteria":"cpe:2.3:o:paloaltonetworks:pan-os:10.0.0:*:*:*:*:*:*:*","matchCriteriaId":"B16437C0-FDAA-45FB-B28B-12249F7B2F05","vulnerable":true}],"negate":false,"operator":"OR"}]}],"cveTags":[],"descriptions":[{"lang":"en","value":"A memory corruption vulnerability in Palo Alto Networks PAN-OS GlobalProtect Clientless VPN enables an authenticated attacker to execute arbitrary code with root user privileges during SAML authentication. This issue impacts: PAN-OS 8.1 versions earlier than PAN-OS 8.1.20; PAN-OS 9.0 versions earlier than PAN-OS 9.0.14; PAN-OS 9.1 versions earlier than PAN-OS 9.1.9; PAN-OS 10.0 versions earlier than PAN-OS 10.0.1. Prisma Access customers with Prisma Access 2.1 Preferred firewalls are impacted by this issue."},{"lang":"es","value":"Una vulnerabilidad de corrupción de memoria en Palo Alto Networks PAN-OS GlobalProtect Clientless VPN permite a un atacante autenticado ejecutar código arbitrario con privilegios de usuario root durante la autenticación SAML. Este problema afecta a: PAN-OS versiones 8.1 anteriores a PAN-OS 8.1.20; PAN-OS versiones 9.0 anteriores a PAN-OS 9.0.14; PAN-OS versiones 9.1 anteriores a PAN-OS 9.1.9; PAN-OS versiones 10.0 anteriores a PAN-OS 10.0.1. Los clientes de Prisma Access Prisma Access versión 2.1 con firewall Preferidos están afectados por este problema\n"}],"id":"CVE-2021-3056","lastModified":"2026-06-17T04:04:39.027","metrics":{"cvssMetricV2":[{"acInsufInfo":false,"baseSeverity":"HIGH","cvssData":{"accessComplexity":"MEDIUM","accessVector":"NETWORK","authentication":"SINGLE","availabilityImpact":"COMPLETE","baseScore":8.5,"confidentialityImpact":"COMPLETE","integrityImpact":"COMPLETE","vectorString":"AV:N/AC:M/Au:S/C:C/I:C/A:C","version":"2.0"},"exploitabilityScore":6.8,"impactScore":10.0,"obtainAllPrivilege":false,"obtainOtherPrivilege":false,"obtainUserPrivilege":false,"source":"nvd@nist.gov","type":"Primary","userInteractionRequired":false}],"cvssMetricV31":[{"cvssData":{"attackComplexity":"LOW","attackVector":"NETWORK","availabilityImpact":"HIGH","baseScore":8.8,"baseSeverity":"HIGH","confidentialityImpact":"HIGH","integrityImpact":"HIGH","privilegesRequired":"LOW","scope":"UNCHANGED","userInteraction":"NONE","vectorString":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","version":"3.1"},"exploitabilityScore":2.8,"impactScore":5.9,"source":"psirt@paloaltonetworks.com","type":"Secondary"},{"cvssData":{"attackComplexity":"LOW","attackVector":"NETWORK","availabilityImpact":"HIGH","baseScore":8.8,"baseSeverity":"HIGH","confidentialityImpact":"HIGH","integrityImpact":"HIGH","privilegesRequired":"LOW","scope":"UNCHANGED","userInteraction":"NONE","vectorString":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","version":"3.1"},"exploitabilityScore":2.8,"impactScore":5.9,"source":"nvd@nist.gov","type":"Primary"}]},"published":"2021-11-10T17:15:09.553","references":[{"source":"psirt@paloaltonetworks.com","tags":["Vendor Advisory"],"url":"https://security.paloaltonetworks.com/CVE-2021-3056"},{"source":"af854a3a-2127-422b-91ae-364da2661108","tags":["Vendor Advisory"],"url":"https://security.paloaltonetworks.com/CVE-2021-3056"}],"sourceIdentifier":"psirt@paloaltonetworks.com","vulnStatus":"Modified","weaknesses":[{"description":[{"lang":"en","value":"CWE-120"}],"source":"psirt@paloaltonetworks.com","type":"Secondary"},{"description":[{"lang":"en","value":"CWE-787"}],"source":"nvd@nist.gov","type":"Primary"}]}