{"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: Denial of Service in Advanced DNS Security Feature"}],"publisher":{"category":"vendor","name":"Palo Alto Networks","namespace":"https://security.paloaltonetworks.com"},"title":"Palo Alto Networks PSIRT provided VEX document: CVE-2026-0229","distribution":{"text":"Copyright © 2024 Palo Alto Networks. All rights reserved.","tlp":{"label":"CLEAR","url":"https://www.first.org/tlp/"}},"tracking":{"current_release_date":"2026-04-11T00:51:30.756Z","generator":{"date":"2026-04-11T00:51:30.756Z","engine":{"name":"Vulnogram","version":"0.1.0-dev"}},"id":"CVE-2026-0229","initial_release_date":"2026-02-11T17:00:00.000Z","revision_history":[{"number":"1","date":"2026-02-11T09:00:00.000Z","summary":"Initial Publication"},{"number":"2","date":"2026-02-19T15:30:00.000Z","summary":"Clarified that Panorama is not impacted. "}],"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 Firewall","category":"product_name","branches":[{"category":"product_version_range","name":"vers:generic/PAN-OS Firewall<12.1.4","product":{"name":"Palo Alto Networks PAN-OS Firewall","product_id":"PANW-PAN-OS-Firewall-1"}},{"category":"product_version_range","name":"vers:generic/PAN-OS Firewall>=12.1.4","product":{"name":"Palo Alto Networks PAN-OS Firewall","product_id":"PANW-PAN-OS-Firewall-1"}},{"category":"product_version_range","name":"vers:generic/PAN-OS Firewall<11.2.10","product":{"name":"Palo Alto Networks PAN-OS Firewall","product_id":"PANW-PAN-OS-Firewall-3"}},{"category":"product_version_range","name":"vers:generic/PAN-OS Firewall>=11.2.10","product":{"name":"Palo Alto Networks PAN-OS Firewall","product_id":"PANW-PAN-OS-Firewall-3"}},{"category":"product_version_range","name":"vers:generic/PAN-OS Firewall>=11.1.0","product":{"name":"Palo Alto Networks PAN-OS Firewall","product_id":"PANW-PAN-OS-Firewall-5"}},{"category":"product_version_range","name":"vers:generic/PAN-OS Firewall>=10.2.0","product":{"name":"Palo Alto Networks PAN-OS Firewall","product_id":"PANW-PAN-OS-Firewall-7"}}]},{"name":"Panorama","category":"product_name","branches":[{"category":"product_version","name":"Panorama All","product":{"name":"Palo Alto Networks Panorama","product_id":"PANW-Panorama-1"}}]},{"name":"Prisma Access","category":"product_name","branches":[{"category":"product_version","name":"Prisma Access All","product":{"name":"Palo Alto Networks Prisma Access","product_id":"PANW-Prisma-Access-1"}}]}]}]},"vulnerabilities":[{"cve":"CVE-2026-0229","product_status":{"fixed":["PANW-PAN-OS-Firewall-1","PANW-PAN-OS-Firewall-3"],"known_affected":["PANW-PAN-OS-Firewall-1","PANW-PAN-OS-Firewall-3"],"known_not_affected":["PANW-Cloud-NGFW--1","PANW-PAN-OS-Firewall-5","PANW-PAN-OS-Firewall-7","PANW-Panorama-1","PANW-Prisma-Access-1"]},"notes":[{"category":"description","text":"A denial-of-service (DoS) vulnerability in the Advanced DNS Security (ADNS) feature of Palo Alto Networks PAN-OS® software enables an unauthenticated attacker to initiate system reboots using a maliciously crafted packet. Repeated attempts to initiate a reboot causes the firewall to enter maintenance mode.\n\nPanorama, Cloud NGFW, and Prisma Access® are not impacted by this vulnerability."}],"references":[{"category":"external","summary":"NVD - CVE-2026-0229","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-0229"},{"category":"self","summary":"Palo Alto Networks Security Advisory CVE-2026-0229","url":"https://security.paloaltonetworks.com/CVE-2026-0229"}],"threats":[{"category":"impact","description":"A denial-of-service (DoS) vulnerability in the Advanced DNS Security (ADNS) feature of Palo Alto Networks PAN-OS® software enables an unauthenticated attacker to initiate system reboots using a maliciously crafted packet. Repeated attempts to initiate a reboot causes the firewall to enter maintenance mode.\n\nPanorama, Cloud NGFW, and Prisma Access® are not impacted by this vulnerability."}],"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":"UNREPORTED","baseSeverity":"HIGH","baseScore":8.7,"threatSeverity":"MEDIUM","threatScore":6.6,"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:U/AU:Y/R:U/V:D/RE:M/U:Amber"},"products":["PANW-PAN-OS-Firewall-1","PANW-PAN-OS-Firewall-3"]}]}]}