CVE-2026-0229

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Repeated attempts to initiate a reboot causes the firewall to enter maintenance mode.\n\nCloud NGFW and Prisma Access\u00ae are not impacted by this vulnerability.", "supportingMedia": [{"type": "text/html", "value": "A denial-of-service (DoS) vulnerability in the Advanced DNS Security (ADNS) feature of Palo Alto Networks PAN-OS\u00ae 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.<br><br>Cloud NGFW and Prisma Access\u00ae are not impacted by this vulnerability.", "base64": false}]}], "problemTypes": [{"descriptions": [{"lang": "en", "type": "CWE", "cweId": "CWE-754", "description": "CWE-754 Improper Check for Unusual or Exceptional Conditions"}]}], "configurations": [{"lang": "eng", "value": "The firewall must have Advanced DNS Security (ADNS) enabled and a spyware profile with actions configured to block, sinkhole, or alert (i.e., any non-allow value).", "supportingMedia": [{"type": "text/html", "value": "The firewall must have Advanced DNS Security (ADNS) enabled and a spyware profile with actions configured to block, sinkhole, or alert (i.e., any non-allow value).", "base64": false}]}], "x_affectedList": ["PAN-OS 12.1.3-h3", "PAN-OS 12.1.3-h1", "PAN-OS 12.1.3", "PAN-OS 12.1.2", "PAN-OS 11.2.9", "PAN-OS 11.2.8", "PAN-OS 11.2.7-h10", "PAN-OS 11.2.7-h8", "PAN-OS 11.2.7-h7", "PAN-OS 11.2.7-h4", "PAN-OS 11.2.7-h3", "PAN-OS 11.2.7-h2", "PAN-OS 11.2.7-h1", "PAN-OS 11.2.7", "PAN-OS 11.2.6", "PAN-OS 11.2.5", "PAN-OS 11.2.4-h15", "PAN-OS 11.2.4-h14", "PAN-OS 11.2.4-h12", "PAN-OS 11.2.4-h11", "PAN-OS 11.2.4-h10", "PAN-OS 11.2.4-h9", "PAN-OS 11.2.4-h8", "PAN-OS 11.2.4-h7", "PAN-OS 11.2.4-h6", "PAN-OS 11.2.4-h5", "PAN-OS 11.2.4-h4", "PAN-OS 11.2.4-h3", "PAN-OS 11.2.4-h2", "PAN-OS 11.2.4-h1", "PAN-OS 11.2.4", "PAN-OS 11.2.3-h5", "PAN-OS 11.2.3-h4", "PAN-OS 11.2.3-h3", "PAN-OS 11.2.3-h2", "PAN-OS 11.2.3-h1", "PAN-OS 11.2.3", "PAN-OS 11.2.2-h2", "PAN-OS 11.2.2-h1", "PAN-OS 11.2.1-h1", "PAN-OS 11.2.1", "PAN-OS 11.2.0-h1", "PAN-OS 11.2.0"], "cpeApplicability": [{"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:o:palo_alto_networks:pan-os:*:*:*:*:*:*:*:*", "vulnerable": true, "versionEndExcluding": "12.1.4", "versionStartIncluding": "12.1.2"}, {"criteria": "cpe:2.3:o:palo_alto_networks:pan-os:*:*:*:*:*:*:*:*", "vulnerable": true, "versionEndExcluding": "11.2.10", "versionStartIncluding": "11.2.0"}], "operator": "OR"}], "operator": "OR"}], "providerMetadata": {"orgId": "d6c1279f-00f6-4ef7-9217-f89ffe703ec0", "shortName": "palo_alto", "dateUpdated": "2026-02-11T17:56:09.270Z"}}}, "cveMetadata": {"cveId": "CVE-2026-0229", "state": "PUBLISHED", "dateUpdated": "2026-02-11T18:58:48.926Z", "dateReserved": "2025-11-03T20:43:50.406Z", "assignerOrgId": "d6c1279f-00f6-4ef7-9217-f89ffe703ec0", "datePublished": "2026-02-11T17:56:09.270Z", "assignerShortName": "palo_alto"}, "dataVersion": "5.2"}

{"affected": [{"affectedData": [{"defaultStatus": "unaffected", "product": "Cloud NGFW", "vendor": "Palo Alto Networks", "versions": [{"status": "unaffected", "version": "All", "versionType": "custom"}]}, {"cpes": ["cpe:2.3:o:palo_alto_networks:pan-os:12.1.3:*:*:*:*:*:*:*", "cpe:2.3:o:palo_alto_networks:pan-os:12.1.2:*:*:*:*:*:*:*", "cpe:2.3:o:palo_alto_networks:pan-os:11.2.9:*:*:*:*:*:*:*", "cpe:2.3:o:palo_alto_networks:pan-os:11.2.8:*:*:*:*:*:*:*", "cpe:2.3:o:palo_alto_networks:pan-os:11.2.7:*:*:*:*:*:*:*", "cpe:2.3:o:palo_alto_networks:pan-os:11.2.6:*:*:*:*:*:*:*", "cpe:2.3:o:palo_alto_networks:pan-os:11.2.5:*:*:*:*:*:*:*", "cpe:2.3:o:palo_alto_networks:pan-os:11.2.4:*:*:*:*:*:*:*", "cpe:2.3:o:palo_alto_networks:pan-os:11.2.3:*:*:*:*:*:*:*", "cpe:2.3:o:palo_alto_networks:pan-os:11.2.2:*:*:*:*:*:*:*", "cpe:2.3:o:palo_alto_networks:pan-os:11.2.1:*:*:*:*:*:*:*", "cpe:2.3:o:palo_alto_networks:pan-os:11.2.0:*:*:*:*:*:*:*"], "defaultStatus": "unaffected", "product": "PAN-OS", "vendor": "Palo Alto Networks", "versions": [{"changes": [{"at": "12.1.4", "status": "unaffected"}], "lessThan": "12.1.4", "status": "affected", "version": "12.1.0", "versionType": "custom"}, {"changes": [{"at": "11.2.10", "status": "unaffected"}], "lessThan": "11.2.10", "status": "affected", "version": "11.2.0", "versionType": "custom"}, {"changes": [{"at": "11.1.11", "status": "unaffected"}], "lessThan": "11.1.11", "status": "unaffected", "version": "11.1.0", "versionType": "custom"}, {"changes": [{"at": "10.2.17", "status": "unaffected"}], "lessThan": "10.2.17", "status": "unaffected", "version": "10.2.0", "versionType": "custom"}]}, {"defaultStatus": "unaffected", "product": "Prisma Access", "vendor": "Palo Alto Networks", "versions": [{"changes": [{"at": "11.2.7-h10", "status": "unaffected"}, {"at": "10.2.10-h28", "status": "unaffected"}], "lessThan": "10.2.10-h28", "status": "unaffected", "version": "All", "versionType": "custom"}]}], "source": "psirt@paloaltonetworks.com"}], "cveTags": [], "descriptions": [{"lang": "en", "value": "A denial-of-service (DoS) vulnerability in the Advanced DNS Security (ADNS) feature of Palo Alto Networks PAN-OS\u00ae 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\nCloud NGFW and Prisma Access\u00ae are not impacted by this vulnerability."}, {"lang": "es", "value": "Una vulnerabilidad de denegaci\u00f3n de servicio (DoS) en la funci\u00f3n Advanced DNS Security (ADNS) del software PAN-OS\u00ae de Palo Alto Networks permite a un atacante no autenticado iniciar reinicios del sistema utilizando un paquete maliciosamente dise\u00f1ado. Los intentos repetidos de iniciar un reinicio hacen que el cortafuegos entre en modo de mantenimiento.\n\nCloud NGFW y Prisma Access\u00ae no se ven afectados por esta vulnerabilidad."}], "id": "CVE-2026-0229", "lastModified": "2026-06-17T10:10:34.200", "metrics": {"cvssMetricV40": [{"cvssData": {"Automatable": "YES", "Recovery": "USER", "Safety": "NOT_DEFINED", "attackComplexity": "LOW", "attackRequirements": "NONE", "attackVector": "NETWORK", "availabilityRequirement": "NOT_DEFINED", "baseScore": 6.6, "baseSeverity": "MEDIUM", "confidentialityRequirement": "NOT_DEFINED", "exploitMaturity": "UNREPORTED", "integrityRequirement": "NOT_DEFINED", "modifiedAttackComplexity": "NOT_DEFINED", "modifiedAttackRequirements": "NOT_DEFINED", "modifiedAttackVector": "NOT_DEFINED", "modifiedPrivilegesRequired": "NOT_DEFINED", "modifiedSubAvailabilityImpact": "NOT_DEFINED", "modifiedSubConfidentialityImpact": "NOT_DEFINED", "modifiedSubIntegrityImpact": "NOT_DEFINED", "modifiedUserInteraction": "NOT_DEFINED", "modifiedVulnAvailabilityImpact": "NOT_DEFINED", "modifiedVulnConfidentialityImpact": "NOT_DEFINED", "modifiedVulnIntegrityImpact": "NOT_DEFINED", "privilegesRequired": "NONE", "providerUrgency": "AMBER", "subAvailabilityImpact": "NONE", "subConfidentialityImpact": "NONE", "subIntegrityImpact": "NONE", "userInteraction": "NONE", "valueDensity": "DIFFUSE", "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/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:Y/R:U/V:D/RE:M/U:Amber", "version": "4.0", "vulnAvailabilityImpact": "HIGH", "vulnConfidentialityImpact": "NONE", "vulnIntegrityImpact": "NONE", "vulnerabilityResponseEffort": "MODERATE"}, "source": "psirt@paloaltonetworks.com", "type": "Secondary"}], "ssvcV203": [{"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "ssvcData": {"id": "CVE-2026-0229", "options": [{"exploitation": "poc"}, {"automatable": "no"}, {"technicalImpact": "partial"}], "role": "CISA Coordinator", "timestamp": "2026-02-11T18:30:06.401502Z", "version": "2.0.3"}}]}, "published": "2026-02-11T18:16:07.897", "references": [{"source": "psirt@paloaltonetworks.com", "url": "https://security.paloaltonetworks.com/CVE-2026-0229"}], "sourceIdentifier": "psirt@paloaltonetworks.com", "vulnStatus": "Deferred", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-754"}], "source": "psirt@paloaltonetworks.com", "type": "Secondary"}]}

{}

{"affected": [{"configurations": [{"platform": null, "status": "unaffected", "versions": {"scheme": "generic", "value": "[0,*]"}}], "product": "cloud_ngfw", "vendor": "palo_alto_networks"}, {"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "semver", "value": "[12.1.0,12.1.4)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "semver", "value": "[11.2.0,11.2.10)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "[11.1.0,11.1.11)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "[10.2.0,10.2.17)"}}], "product": "pan-os", "vendor": "palo_alto_networks"}, {"configurations": [{"platform": null, "status": "unaffected", "versions": {"scheme": "generic", "value": "[0,*]"}}], "product": "prisma_access", "vendor": "palo_alto_networks"}], "analysis": {"en": {"generated_at": "2026-04-17T20:17:32.835785+00:00", "value": {"mitigation_remediation": ["Upgrade PAN\u2011OS\u202f12.1 firmware to\u202f12.1.4 or later if running\u202f12.1.2\u201112.1.3.", "Upgrade PAN\u2011OS\u202f11.2 firmware to\u202f11.2.10 or later if running\u202f11.2.0\u201111.2.9.", "If using any older or unsupported PAN\u2011OS release, migrate to the latest supported version that includes the fix."], "summary": {"action": "Immediate Patch", "impact": "Denial of Service via forced system reboots"}, "threat_synthesis": {"affected_systems": "Products affected are Palo Alto Networks PAN\u2011OS firmware versions 11.2.0 through 11.2.9 and 12.1.2 through 12.1.3. Cloud NGFW and Prisma Access are not impacted. Users running these firmware ranges should consider the vendor\u2011recommended updates: for PAN\u2011OS 12.1, upgrade to 12.1.4 or later; for PAN\u2011OS 11.2, upgrade to 11.2.10 or later; all older, unsupported PAN\u2011OS releases should be moved to a supported fixed version.", "description_and_impact": "A denial\u2011of\u2011service flaw exists in the Advanced DNS Security (ADNS) feature of Palo Alto Networks PAN\u2011OS. An unauthenticated attacker can send a specially crafted packet that forces the firewall to reboot. Repeated attempts can lock the device into maintenance mode, rendering it unavailable. The flaw maps to CWE\u2011754, which concerns the use of remote input to cause a denial of service.", "risk_and_exploitability": "The CVSS base score of 6.6 indicates a moderate severity, and the EPSS score, while low (<1%), confirms that the vulnerability is not currently widely exploited. Because the issue requires an unauthenticated network packet, the most likely attack vector would be an insider or adversary gaining network access to the ADNS interface. Once exploited, the attacker can force ongoing reboots and lock the device, causing a denial of service. The vulnerability is not listed in the CISA KEV catalog, implying no publicly confirmed exploits at the time of writing."}}}}, "created": "2026-02-11T21:37:43.840868+00:00", "updated": "2026-04-17T20:30:15.804496+00:00", "vendors": ["palo_alto_networks", "palo_alto_networks$PRODUCT$cloud_ngfw", "palo_alto_networks$PRODUCT$pan-os", "palo_alto_networks$PRODUCT$prisma_access"]}