{"api_version":"1","generated_at":"2026-06-22T19:10:24+00:00","cve":"CVE-2026-0269","urls":{"html":"https://cve.report/CVE-2026-0269","api":"https://cve.report/api/cve/CVE-2026-0269.json","docs":"https://cve.report/api","cve_org":"https://www.cve.org/CVERecord?id=CVE-2026-0269","nvd":"https://nvd.nist.gov/vuln/detail/CVE-2026-0269"},"summary":{"title":"PAN-OS: Denial of Service (DoS) in Tunnel Traffic Processing","description":"A memory corruption vulnerability in the processing of tunnel traffic in Palo Alto Networks PAN-OS® software allows an authenticated user to initiate system reboots using a maliciously crafted packet. Repeated attempts to initiate a reboot causes the firewall to enter maintenance mode.\n\n\n\nPanorama, Cloud NGFW, and Prisma® Access are not impacted by this vulnerability.","state":"PUBLISHED","assigner":"palo_alto","published_at":"2026-06-10 22:16:53","updated_at":"2026-06-11 15:21:30"},"problem_types":["CWE-754","CWE-754 CWE-754: Improper Check for Unusual or Exceptional Conditions"],"metrics":[{"version":"4.0","source":"psirt@paloaltonetworks.com","type":"Secondary","score":"4.6","severity":"MEDIUM","vector":"CVSS:4.0/AV:A/AC:L/AT:N/PR:L/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:N/R:A/V:D/RE:M/U:Amber","data":{"version":"4.0","vectorString":"CVSS:4.0/AV:A/AC:L/AT:N/PR:L/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:N/R:A/V:D/RE:M/U:Amber","baseScore":4.6,"baseSeverity":"MEDIUM","attackVector":"ADJACENT","attackComplexity":"LOW","attackRequirements":"NONE","privilegesRequired":"LOW","userInteraction":"NONE","vulnConfidentialityImpact":"NONE","vulnIntegrityImpact":"NONE","vulnAvailabilityImpact":"HIGH","subConfidentialityImpact":"NONE","subIntegrityImpact":"NONE","subAvailabilityImpact":"NONE","exploitMaturity":"UNREPORTED","confidentialityRequirement":"NOT_DEFINED","integrityRequirement":"NOT_DEFINED","availabilityRequirement":"NOT_DEFINED","modifiedAttackVector":"NOT_DEFINED","modifiedAttackComplexity":"NOT_DEFINED","modifiedAttackRequirements":"NOT_DEFINED","modifiedPrivilegesRequired":"NOT_DEFINED","modifiedUserInteraction":"NOT_DEFINED","modifiedVulnConfidentialityImpact":"NOT_DEFINED","modifiedVulnIntegrityImpact":"NOT_DEFINED","modifiedVulnAvailabilityImpact":"NOT_DEFINED","modifiedSubConfidentialityImpact":"NOT_DEFINED","modifiedSubIntegrityImpact":"NOT_DEFINED","modifiedSubAvailabilityImpact":"NOT_DEFINED","Safety":"NOT_DEFINED","Automatable":"NO","Recovery":"AUTOMATIC","valueDensity":"DIFFUSE","vulnerabilityResponseEffort":"MODERATE","providerUrgency":"AMBER"}},{"version":"4.0","source":"CNA","type":"CVSS","score":"4.6","severity":"MEDIUM","vector":"CVSS:4.0/AV:A/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/AU:N/R:A/V:D/RE:M/U:Amber","data":{"Automatable":"NO","Recovery":"AUTOMATIC","Safety":"NOT_DEFINED","attackComplexity":"LOW","attackRequirements":"NONE","attackVector":"ADJACENT","baseScore":4.6,"baseSeverity":"MEDIUM","exploitMaturity":"UNREPORTED","privilegesRequired":"LOW","providerUrgency":"AMBER","subAvailabilityImpact":"NONE","subConfidentialityImpact":"NONE","subIntegrityImpact":"NONE","userInteraction":"NONE","valueDensity":"DIFFUSE","vectorString":"CVSS:4.0/AV:A/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/AU:N/R:A/V:D/RE:M/U:Amber","version":"4.0","vulnAvailabilityImpact":"HIGH","vulnConfidentialityImpact":"NONE","vulnIntegrityImpact":"NONE","vulnerabilityResponseEffort":"MODERATE"}}],"references":[{"url":"https://security.paloaltonetworks.com/CVE-2026-0269","name":"https://security.paloaltonetworks.com/CVE-2026-0269","refsource":"psirt@paloaltonetworks.com","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://www.cve.org/CVERecord?id=CVE-2026-0269","name":"CVE Program record","refsource":"CVE.ORG","tags":["canonical"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-0269","name":"NVD vulnerability detail","refsource":"NVD","tags":["canonical","analysis"]}],"affected":[{"source":"CNA","vendor":"Palo Alto Networks","product":"Cloud NGFW","version":"unaffected All custom","platforms":[]},{"source":"CNA","vendor":"Palo Alto Networks","product":"PAN-OS","version":"affected 12.1.0 12.1.5 custom","platforms":[]},{"source":"CNA","vendor":"Palo Alto Networks","product":"PAN-OS","version":"affected 11.2.0 11.2.10 custom","platforms":[]},{"source":"CNA","vendor":"Palo Alto Networks","product":"PAN-OS","version":"affected 11.1.0 11.1.6-h21 custom","platforms":[]},{"source":"CNA","vendor":"Palo Alto Networks","product":"PAN-OS","version":"affected 10.2.0 10.2.16-h6 custom","platforms":[]},{"source":"CNA","vendor":"Palo Alto Networks","product":"Panorama","version":"unaffected All custom","platforms":[]},{"source":"CNA","vendor":"Palo Alto Networks","product":"Prisma Access","version":"unaffected All custom","platforms":[]}],"timeline":[{"source":"CNA","time":"2026-06-10T16:00:00.000Z","lang":"en","value":"Initial publication."}],"solutions":[{"source":"CNA","title":"","value":"VERSION           MINOR VERSION                SUGGESTED SOLUTION\nCloud NGFW                                     No action needed.\nPAN-OS 12.1       12.1.2 through 12.1.4-h*     Upgrade to 12.1.4-h5 or 12.1.5 or later.\nPAN-OS 11.2       11.2.8 through 11.2.9        Upgrade to 11.2.10 or later.\n                  11.2.5 through 11.2.7-h*     Upgrade to 11.2.7-h4 or 11.2.10 or later.\n                  11.2.0 through 11.2.4-h*     Upgrade to 11.2.4-h17 or 11.2.10 or later.\nPAN-OS 11.1       11.1.11 or later             Upgrade to 11.1.12 or later.\n                  11.1.7 through 11.1.10-h*    Upgrade to 11.1.10-h7 or 11.1.12 or later.\n                  11.1.5 through 11.1.6-h*     Upgrade to 11.1.6-h21 or 11.1.12 or later.\n                  11.1.0 through 11.1.4-h*     Upgrade to 11.1.4-h33 or 11.1.12 or later.\nPAN-OS 10.2       10.2.17 or later             Upgrade to 10.2.18 or later.\n                  10.2.4 through 10.2.16-h*    Upgrade to 10.2.16-h6 or 10.2.18 or later.\n                  10.2.11 through 10.2.13-h*   Upgrade to 10.2.13-h21 or 10.2.18 or later.\n                  10.2.8 through 10.2.10-h*    Upgrade to 10.2.10-h36 or 10.2.18 or later.\n                  10.2.0 through 10.2.7-h*     Upgrade to 10.2.7-h34 or 10.2.18 or later.\nAll older                                      Upgrade to a supported fixed version.\nunsupported\nPAN-OS versions\nPanorama                                       No action needed.\nPrisma Access                                  No action needed.","time":"","lang":"eng"}],"workarounds":[{"source":"CNA","title":"","value":"No known workarounds exist for this issue.","time":"","lang":"eng"}],"exploits":[{"source":"CNA","title":"","value":"Palo Alto Networks is not aware of any 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Access)"}],"cpeApplicability":[{"nodes":[{"cpeMatch":[{"criteria":"cpe:2.3:o:palo_alto_networks:pan-os:*:*:*:*:*:*:*:*","versionEndExcluding":"12.1.5","versionStartIncluding":"12.1.0","vulnerable":true},{"criteria":"cpe:2.3:o:palo_alto_networks:pan-os:*:*:*:*:*:*:*:*","versionEndExcluding":"12.1.4-h5","versionStartIncluding":"12.1.4","vulnerable":true},{"criteria":"cpe:2.3:o:palo_alto_networks:pan-os:*:*:*:*:*:*:*:*","versionEndExcluding":"11.2.10","versionStartIncluding":"11.2.0","vulnerable":true},{"criteria":"cpe:2.3:o:palo_alto_networks:pan-os:*:*:*:*:*:*:*:*","versionEndExcluding":"11.2.7-h4","versionStartIncluding":"11.2.7","vulnerable":true},{"criteria":"cpe:2.3:o:palo_alto_networks:pan-os:*:*:*:*:*:*:*:*","versionEndExcluding":"11.2.4-h17","versionStartIncluding":"11.2.4","vulnerable":true},{"criteria":"cpe:2.3:o:palo_alto_networks:pan-os:*:*:*:*:*:*:*:*","versionEndExcluding":"11.1.12","versionStartIncluding":"11.1.0","vulnerable":true},{"criteria":"cpe:2.3:o:palo_alto_networks:pan-os:*:*:*:*:*:*:*:*","versionEndExcluding":"11.1.10-h7","versionStartIncluding":"11.1.10","vulnerable":true},{"criteria":"cpe:2.3:o:palo_alto_networks:pan-os:*:*:*:*:*:*:*:*","versionEndExcluding":"11.1.6-h21","versionStartIncluding":"11.1.6","vulnerable":true},{"criteria":"cpe:2.3:o:palo_alto_networks:pan-os:*:*:*:*:*:*:*:*","versionEndExcluding":"11.1.4-h33","versionStartIncluding":"11.1.4","vulnerable":true},{"criteria":"cpe:2.3:o:palo_alto_networks:pan-os:*:*:*:*:*:*:*:*","versionEndExcluding":"10.2.18","versionStartIncluding":"10.2.0","vulnerable":true},{"criteria":"cpe:2.3:o:palo_alto_networks:pan-os:*:*:*:*:*:*:*:*","versionEndExcluding":"10.2.16-h6","versionStartIncluding":"10.2.16","vulnerable":true},{"criteria":"cpe:2.3:o:palo_alto_networks:pan-os:*:*:*:*:*:*:*:*","versionEndExcluding":"10.2.13-h21","versionStartIncluding":"10.2.13","vulnerable":true},{"criteria":"cpe:2.3:o:palo_alto_networks:pan-os:*:*:*:*:*:*:*:*","versionEndExcluding":"10.2.10-h36","versionStartIncluding":"10.2.10","vulnerable":true},{"criteria":"cpe:2.3:o:palo_alto_networks:pan-os:*:*:*:*:*:*:*:*","versionEndExcluding":"10.2.7-h34","versionStartIncluding":"10.2.7","vulnerable":true}],"negate":false,"operator":"OR"}],"operator":"OR"}],"datePublic":"2026-06-10T16:00:00.000Z","descriptions":[{"lang":"en","supportingMedia":[{"base64":false,"type":"text/html","value":"<p><span>A memory corruption vulnerability in the processing of tunnel traffic in Palo Alto Networks PAN-OS® software allows an authenticated user to initiate system reboots using a maliciously crafted packet. Repeated attempts to initiate a reboot causes the firewall to enter maintenance mode.</span></p><p><span>Panorama, Cloud NGFW, and Prisma® Access are not impacted by this vulnerability.</span></p>"}],"value":"A memory corruption vulnerability in the processing of tunnel traffic in Palo Alto Networks PAN-OS® software allows an authenticated user to initiate system reboots using a maliciously crafted packet. Repeated attempts to initiate a reboot causes the firewall to enter maintenance mode.\n\n\n\nPanorama, Cloud NGFW, and Prisma® Access are not impacted by this vulnerability."}],"exploits":[{"lang":"en","supportingMedia":[{"base64":false,"type":"text/html","value":"Palo Alto Networks is not aware of any malicious exploitation of this issue."}],"value":"Palo Alto Networks is not aware of any malicious exploitation of this issue."}],"impacts":[{"capecId":"CAPEC-153","descriptions":[{"lang":"en","value":"CAPEC-153 Input Data Manipulation"}]}],"metrics":[{"cvssV4_0":{"Automatable":"NO","Recovery":"AUTOMATIC","Safety":"NOT_DEFINED","attackComplexity":"LOW","attackRequirements":"NONE","attackVector":"ADJACENT","baseScore":4.6,"baseSeverity":"MEDIUM","exploitMaturity":"UNREPORTED","privilegesRequired":"LOW","providerUrgency":"AMBER","subAvailabilityImpact":"NONE","subConfidentialityImpact":"NONE","subIntegrityImpact":"NONE","userInteraction":"NONE","valueDensity":"DIFFUSE","vectorString":"CVSS:4.0/AV:A/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/AU:N/R:A/V:D/RE:M/U:Amber","version":"4.0","vulnAvailabilityImpact":"HIGH","vulnConfidentialityImpact":"NONE","vulnIntegrityImpact":"NONE","vulnerabilityResponseEffort":"MODERATE"},"format":"CVSS","scenarios":[{"lang":"en","value":"GENERAL"}]}],"problemTypes":[{"descriptions":[{"cweId":"CWE-754","description":"CWE-754: Improper Check for Unusual or Exceptional Conditions","lang":"en","type":"CWE"}]}],"providerMetadata":{"dateUpdated":"2026-06-10T20:54:29.102Z","orgId":"d6c1279f-00f6-4ef7-9217-f89ffe703ec0","shortName":"palo_alto"},"references":[{"tags":["vendor-advisory"],"url":"https://security.paloaltonetworks.com/CVE-2026-0269"}],"solutions":[{"lang":"eng","supportingMedia":[{"base64":false,"type":"text/html","value":"<table><thead><tr><th>Version<br></th><th>Minor Version<br></th><th>Suggested Solution<br></th></tr></thead><tbody><tr><td>Cloud NGFW<br></td><td></td><td>No action needed.</td></tr><tr>\n                                <td>PAN-OS 12.1<br></td>\n                                <td>12.1.2 through 12.1.4-h*</td>\n                                <td>Upgrade to 12.1.4-h5 or 12.1.5 or later.</td>\n                            </tr><tr>\n                                <td>PAN-OS 11.2<br></td>\n                                <td>11.2.8 through 11.2.9</td>\n                                <td>Upgrade to 11.2.10 or later.</td>\n                            </tr><tr>\n                                <td></td>\n                                <td>11.2.5 through 11.2.7-h*</td>\n                                <td>Upgrade to 11.2.7-h4 or 11.2.10 or later.</td>\n                            </tr><tr>\n                                <td></td>\n                                <td>11.2.0 through 11.2.4-h*</td>\n                                <td>Upgrade to 11.2.4-h17 or 11.2.10 or later.</td>\n                            </tr><tr>\n                                <td>PAN-OS 11.1<br></td>\n                                <td>11.1.11 or later</td>\n                                <td>Upgrade to 11.1.12 or later.</td>\n                            </tr><tr><td>&nbsp;</td><td>11.1.7 through 11.1.10-h*</td><td>Upgrade to 11.1.10-h7 or 11.1.12 or later.<br></td></tr><tr>\n                                <td></td>\n                                <td>11.1.5 through 11.1.6-h*</td>\n                                <td>Upgrade to 11.1.6-h21 or 11.1.12 or later.</td>\n                            </tr><tr>\n                                <td></td>\n                                <td>11.1.0 through 11.1.4-h*</td>\n                                <td>Upgrade to 11.1.4-h33 or 11.1.12 or later.</td>\n                            </tr><tr>\n                                <td>PAN-OS 10.2<br></td>\n                                <td>10.2.17 or later</td>\n                                <td>Upgrade to 10.2.18 or later.</td>\n                            </tr><tr><td>&nbsp;</td><td>10.2.4 through 10.2.16-h*<br></td><td>Upgrade to 10.2.16-h6 or 10.2.18 or later.<br></td></tr><tr>\n                                <td></td>\n                                <td>10.2.11 through 10.2.13-h*</td>\n                                <td>Upgrade to 10.2.13-h21 or 10.2.18 or later.</td>\n                            </tr><tr>\n                                <td></td>\n                                <td>10.2.8 through 10.2.10-h*</td>\n                                <td>Upgrade to 10.2.10-h36 or 10.2.18 or later.</td>\n                            </tr><tr>\n                                <td></td>\n                                <td>10.2.0 through 10.2.7-h*</td>\n                                <td>Upgrade to 10.2.7-h34 or 10.2.18 or later.</td>\n                            </tr><tr><td>All older<br>unsupported<br>PAN-OS versions</td><td>&nbsp;</td><td>Upgrade to a supported fixed version.</td></tr><tr><td>Panorama</td><td>&nbsp;</td><td>No action needed.</td></tr><tr>\n                                <td>Prisma Access<br></td>\n                                <td><br></td>\n                                <td>No action needed.</td>\n                            </tr></tbody></table>"}],"value":"VERSION           MINOR VERSION                SUGGESTED SOLUTION\nCloud NGFW                                     No action needed.\nPAN-OS 12.1       12.1.2 through 12.1.4-h*     Upgrade to 12.1.4-h5 or 12.1.5 or later.\nPAN-OS 11.2       11.2.8 through 11.2.9        Upgrade to 11.2.10 or later.\n                  11.2.5 through 11.2.7-h*     Upgrade to 11.2.7-h4 or 11.2.10 or later.\n                  11.2.0 through 11.2.4-h*     Upgrade to 11.2.4-h17 or 11.2.10 or later.\nPAN-OS 11.1       11.1.11 or later             Upgrade to 11.1.12 or later.\n                  11.1.7 through 11.1.10-h*    Upgrade to 11.1.10-h7 or 11.1.12 or later.\n                  11.1.5 through 11.1.6-h*     Upgrade to 11.1.6-h21 or 11.1.12 or later.\n                  11.1.0 through 11.1.4-h*     Upgrade to 11.1.4-h33 or 11.1.12 or later.\nPAN-OS 10.2       10.2.17 or later             Upgrade to 10.2.18 or later.\n                  10.2.4 through 10.2.16-h*    Upgrade to 10.2.16-h6 or 10.2.18 or later.\n                  10.2.11 through 10.2.13-h*   Upgrade to 10.2.13-h21 or 10.2.18 or later.\n                  10.2.8 through 10.2.10-h*    Upgrade to 10.2.10-h36 or 10.2.18 or later.\n                  10.2.0 through 10.2.7-h*     Upgrade to 10.2.7-h34 or 10.2.18 or later.\nAll older                                      Upgrade to a supported fixed version.\nunsupported\nPAN-OS versions\nPanorama                                       No action needed.\nPrisma Access                                  No action needed."}],"source":{"discovery":"USER"},"timeline":[{"lang":"en","time":"2026-06-10T16:00:00.000Z","value":"Initial publication."}],"title":"PAN-OS: Denial of Service (DoS) in Tunnel Traffic Processing","workarounds":[{"lang":"eng","supportingMedia":[{"base64":false,"type":"text/html","value":"No known workarounds exist for this issue."}],"value":"No known workarounds exist for this issue."}],"x_affectedList":["PAN-OS 12.1.4-h3","PAN-OS 12.1.4-h2","PAN-OS 12.1.4","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-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 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Conditions"],"metrics":{"cvssMetricV40":[{"source":"psirt@paloaltonetworks.com","type":"Secondary","cvssData":{"version":"4.0","vectorString":"CVSS:4.0/AV:A/AC:L/AT:N/PR:L/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:N/R:A/V:D/RE:M/U:Amber","baseScore":4.6,"baseSeverity":"MEDIUM","attackVector":"ADJACENT","attackComplexity":"LOW","attackRequirements":"NONE","privilegesRequired":"LOW","userInteraction":"NONE","vulnConfidentialityImpact":"NONE","vulnIntegrityImpact":"NONE","vulnAvailabilityImpact":"HIGH","subConfidentialityImpact":"NONE","subIntegrityImpact":"NONE","subAvailabilityImpact":"NONE","exploitMaturity":"UNREPORTED","confidentialityRequirement":"NOT_DEFINED","integrityRequirement":"NOT_DEFINED","availabilityRequirement":"NOT_DEFINED","modifiedAttackVector":"NOT_DEFINED","modifiedAttackComplexity":"NOT_DEFINED","modifiedAttackRequirements":"NOT_DEFINED","modifiedPrivilegesRequired":"NOT_DEFINED","modifiedUserInteraction":"NOT_DEFINED","modifiedVulnConfidentialityImpact":"NOT_DEFINED","modifiedVulnIntegrityImpact":"NOT_DEFINED","modifiedVulnAvailabilityImpact":"NOT_DEFINED","modifiedSubConfidentialityImpact":"NOT_DEFINED","modifiedSubIntegrityImpact":"NOT_DEFINED","modifiedSubAvailabilityImpact":"NOT_DEFINED","Safety":"NOT_DEFINED","Automatable":"NO","Recovery":"AUTOMATIC","valueDensity":"DIFFUSE","vulnerabilityResponseEffort":"MODERATE","providerUrgency":"AMBER"}}]},"configurations":[]},"legacy_mitre":{"record":{"CveYear":"2026","CveId":"269","Ordinal":"1","Title":"PAN-OS: Denial of Service (DoS) in Tunnel Traffic Processing","CVE":"CVE-2026-0269","Year":"2026"},"notes":[{"CveYear":"2026","CveId":"269","Ordinal":"1","NoteData":"A memory corruption vulnerability in the processing of tunnel traffic in Palo Alto Networks PAN-OS® software allows an authenticated user to initiate system reboots using a maliciously crafted packet. Repeated attempts to initiate a reboot causes the firewall to enter maintenance mode.\n\n\n\nPanorama, Cloud NGFW, and Prisma® Access are not impacted by this vulnerability.","Type":"Description","Title":"PAN-OS: Denial of Service (DoS) in Tunnel Traffic Processing"}]}}}