{"document":{"category":"csaf_vex","csaf_version":"2.1","notes":[{"category":"summary","text":"Palo Alto Networks PSIRT provided VEX document. This document is autogenerated.","title":" PAN-OS: Firewall Denial of Service (DoS) in GlobalProtect Gateway and Portal"}],"publisher":{"category":"vendor","name":"Palo Alto Networks","namespace":"https://security.paloaltonetworks.com"},"title":"Palo Alto Networks PSIRT provided VEX document: CVE-2026-0227","distribution":{"text":"Copyright © 2024 Palo Alto Networks. All rights reserved.","tlp":{"label":"CLEAR","url":"https://www.first.org/tlp/"}},"tracking":{"current_release_date":"2026-04-08T08:01:27.593Z","generator":{"date":"2026-04-08T08:01:27.593Z","engine":{"name":"Vulnogram","version":"0.1.0-dev"}},"id":"CVE-2026-0227","initial_release_date":"2026-01-14T17:00:00.000Z","revision_history":[{"number":"1","date":"2026-01-14T09:00:00.000Z","summary":"Initial Publication"},{"number":"2","date":"2026-01-14T10:15:00.000Z","summary":"Changed recommended fix version from 11.2.4-h14 to 11.2.4-h15."},{"number":"3","date":"2026-01-16T10:15:00.000Z","summary":"Added 10.2.4-h43 to Prisma Access Fix Versions."},{"number":"4","date":"2026-01-30T15:30:00.000Z","summary":"Fixed a broken link and updated the Solutions table. "},{"number":"5","date":"2026-02-06T17:45:00.000Z","summary":"Modified the comment about Prisma Access versions to reflect that all instances have been upgraded. "},{"number":"6","date":"2026-02-09T09:30:00.000Z","summary":"Updated recommended fix version for the 10.2.10 hotfix branch to 10.2.10-h31. "}],"status":"final","version":"1"}},"product_tree":{"branches":[{"name":"Palo Alto Networks","category":"vendor","branches":[{"name":"Cloud NGFW","category":"product_name","branches":[{"category":"product_version","name":"Cloud NGFW All","product":{"name":"Palo Alto Networks Cloud NGFW","product_id":"PANW-Cloud-NGFW-1"}}]},{"name":"PAN-OS","category":"product_name","branches":[{"category":"product_version_range","name":"vers:generic/PAN-OS>=12.1.0","product":{"name":"Palo Alto Networks PAN-OS","product_id":"PANW-PAN-OS-724"}},{"category":"product_version_range","name":"vers:generic/PAN-OS>=12.1.4","product":{"name":"Palo Alto Networks PAN-OS","product_id":"PANW-PAN-OS-775"}},{"category":"product_version_range","name":"vers:generic/PAN-OS>=12.1.3-h3","product":{"name":"Palo Alto Networks PAN-OS","product_id":"PANW-PAN-OS-776"}},{"category":"product_version_range","name":"vers:generic/PAN-OS>=11.2.0","product":{"name":"Palo Alto Networks PAN-OS","product_id":"PANW-PAN-OS-119"}},{"category":"product_version_range","name":"vers:generic/PAN-OS>=11.2.10-h2","product":{"name":"Palo Alto Networks PAN-OS","product_id":"PANW-PAN-OS-788"}},{"category":"product_version_range","name":"vers:generic/PAN-OS>=11.2.7-h8","product":{"name":"Palo Alto Networks PAN-OS","product_id":"PANW-PAN-OS-790"}},{"category":"product_version_range","name":"vers:generic/PAN-OS>=11.2.4-h15","product":{"name":"Palo Alto Networks PAN-OS","product_id":"PANW-PAN-OS-794"}},{"category":"product_version_range","name":"vers:generic/PAN-OS>=11.1.0","product":{"name":"Palo Alto Networks PAN-OS","product_id":"PANW-PAN-OS-120"}},{"category":"product_version_range","name":"vers:generic/PAN-OS>=11.1.13","product":{"name":"Palo Alto Networks PAN-OS","product_id":"PANW-PAN-OS-780"}},{"category":"product_version_range","name":"vers:generic/PAN-OS>=11.1.10-h9","product":{"name":"Palo Alto Networks PAN-OS","product_id":"PANW-PAN-OS-781"}},{"category":"product_version_range","name":"vers:generic/PAN-OS>=11.1.6-h23","product":{"name":"Palo Alto Networks PAN-OS","product_id":"PANW-PAN-OS-782"}},{"category":"product_version_range","name":"vers:generic/PAN-OS>=11.1.4-h27","product":{"name":"Palo Alto Networks PAN-OS","product_id":"PANW-PAN-OS-773"}},{"category":"product_version_range","name":"vers:generic/PAN-OS>=10.2.0","product":{"name":"Palo Alto Networks PAN-OS","product_id":"PANW-PAN-OS-579"}},{"category":"product_version_range","name":"vers:generic/PAN-OS>=10.2.18-h1","product":{"name":"Palo Alto Networks PAN-OS","product_id":"PANW-PAN-OS-783"}},{"category":"product_version_range","name":"vers:generic/PAN-OS>=10.2.16-h6","product":{"name":"Palo Alto Networks PAN-OS","product_id":"PANW-PAN-OS-784"}},{"category":"product_version_range","name":"vers:generic/PAN-OS>=10.2.13-h18","product":{"name":"Palo Alto Networks PAN-OS","product_id":"PANW-PAN-OS-785"}},{"category":"product_version_range","name":"vers:generic/PAN-OS>=10.2.10-h31","product":{"name":"Palo Alto Networks PAN-OS","product_id":"PANW-PAN-OS-796"}},{"category":"product_version_range","name":"vers:generic/PAN-OS>=10.2.7-h32","product":{"name":"Palo Alto Networks PAN-OS","product_id":"PANW-PAN-OS-787"}},{"category":"product_version_range","name":"vers:generic/PAN-OS>=10.1.0","product":{"name":"Palo Alto Networks PAN-OS","product_id":"PANW-PAN-OS-118"}},{"category":"product_version_range","name":"vers:generic/PAN-OS>=10.1.14-h20","product":{"name":"Palo Alto Networks PAN-OS","product_id":"PANW-PAN-OS-792"}}]},{"name":"Prisma Access","category":"product_name","branches":[{"category":"product_version","name":"Prisma Access 11.2","product":{"name":"Palo Alto Networks Prisma Access","product_id":"PANW-Prisma-Access-39"}},{"category":"product_version_range","name":"vers:generic/Prisma Access>=11.2.7-h8","product":{"name":"Palo Alto Networks Prisma Access","product_id":"PANW-Prisma-Access-40"}},{"category":"product_version","name":"Prisma Access 10.2","product":{"name":"Palo Alto Networks Prisma Access","product_id":"PANW-Prisma-Access-41"}},{"category":"product_version_range","name":"vers:generic/Prisma Access>=10.2.10-h29","product":{"name":"Palo Alto Networks Prisma Access","product_id":"PANW-Prisma-Access-42"}},{"category":"product_version_range","name":"vers:generic/Prisma Access>=10.2.4-h43","product":{"name":"Palo Alto Networks Prisma Access","product_id":"PANW-Prisma-Access-43"}}]}]}]},"vulnerabilities":[{"cve":"CVE-2026-0227","product_status":{"fixed":["PANW-PAN-OS-775","PANW-PAN-OS-776","PANW-PAN-OS-788","PANW-PAN-OS-790","PANW-PAN-OS-794","PANW-PAN-OS-780","PANW-PAN-OS-781","PANW-PAN-OS-782","PANW-PAN-OS-773","PANW-PAN-OS-783","PANW-PAN-OS-784","PANW-PAN-OS-785","PANW-PAN-OS-796","PANW-PAN-OS-787","PANW-PAN-OS-792","PANW-Prisma-Access-40","PANW-Prisma-Access-42","PANW-Prisma-Access-43"],"known_affected":["PANW-PAN-OS-724","PANW-PAN-OS-119","PANW-PAN-OS-120","PANW-PAN-OS-579","PANW-PAN-OS-118","PANW-Prisma-Access-39","PANW-Prisma-Access-41"],"known_not_affected":["PANW-Cloud-NGFW-1"]},"notes":[{"category":"description","text":"A vulnerability in Palo Alto Networks PAN-OS software enables an unauthenticated attacker to cause a denial of service (DoS) to the firewall. Repeated attempts to trigger this issue results in the firewall entering into maintenance mode."}],"references":[{"category":"external","summary":"NVD - CVE-2026-0227","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-0227"},{"category":"self","summary":"Palo Alto Networks Security Advisory CVE-2026-0227","url":"https://security.paloaltonetworks.com/CVE-2026-0227"}],"threats":[{"category":"impact","description":"A vulnerability in Palo Alto Networks PAN-OS software enables an unauthenticated attacker to cause a denial of service (DoS) to the firewall. Repeated attempts to trigger this issue results in the firewall entering into maintenance mode."}],"scores":[{"cvss_v4":{"version":"4.0","attackVector":"NETWORK","attackComplexity":"LOW","attackRequirements":"NONE","privilegesRequired":"NONE","userInteraction":"NONE","vulnConfidentialityImpact":"NONE","subConfidentialityImpact":"NONE","vulnIntegrityImpact":"NONE","subIntegrityImpact":"NONE","vulnAvailabilityImpact":"HIGH","subAvailabilityImpact":"NONE","Safety":"NOT_DEFINED","Automatable":"YES","Recovery":"USER","valueDensity":"DIFFUSE","vulnerabilityResponseEffort":"MODERATE","providerUrgency":"AMBER","exploitMaturity":"POC","baseSeverity":"HIGH","baseScore":8.7,"threatSeverity":"HIGH","threatScore":7.7,"vectorString":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:P/AU:Y/R:U/V:D/RE:M/U:Amber"},"products":["PANW-PAN-OS-724","PANW-PAN-OS-119","PANW-PAN-OS-120","PANW-PAN-OS-579","PANW-PAN-OS-118","PANW-Prisma-Access-39","PANW-Prisma-Access-41"]}]}]}