{"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: Authentication Bypass Vulnerability in Large Scale VPN (LSVPN)"}],"publisher":{"category":"vendor","name":"Palo Alto Networks","namespace":"https://security.paloaltonetworks.com"},"title":"Palo Alto Networks PSIRT provided VEX document: CVE-2026-0283","distribution":{"text":"Copyright © 2024 Palo Alto Networks. All rights reserved.","tlp":{"label":"CLEAR","url":"https://www.first.org/tlp/"}},"tracking":{"current_release_date":"2026-07-08T20:40:36.427Z","generator":{"date":"2026-07-08T20:40:36.427Z","engine":{"name":"Vulnogram","version":"0.1.0-dev"}},"id":"CVE-2026-0283","initial_release_date":"2026-07-08T16:00:00.000Z","revision_history":[{"number":"1","date":"2026-07-08T09:00:00.000Z","summary":"Initial publication"}],"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<12.1.8","product":{"name":"Palo Alto Networks PAN-OS","product_id":"PANW-PAN-OS-852"}},{"category":"product_version_range","name":"vers:generic/PAN-OS>=12.1.8","product":{"name":"Palo Alto Networks PAN-OS","product_id":"PANW-PAN-OS-852"}},{"category":"product_version_range","name":"vers:generic/PAN-OS>=12.1.7-h2","product":{"name":"Palo Alto Networks PAN-OS","product_id":"PANW-PAN-OS-855"}},{"category":"product_version_range","name":"vers:generic/PAN-OS>=12.1.4-h8","product":{"name":"Palo Alto Networks PAN-OS","product_id":"PANW-PAN-OS-856"}},{"category":"product_version_range","name":"vers:generic/PAN-OS<11.2.13","product":{"name":"Palo Alto Networks PAN-OS","product_id":"PANW-PAN-OS-853"}},{"category":"product_version_range","name":"vers:generic/PAN-OS>=11.2.13","product":{"name":"Palo Alto Networks PAN-OS","product_id":"PANW-PAN-OS-853"}},{"category":"product_version_range","name":"vers:generic/PAN-OS>=11.2.10-h12","product":{"name":"Palo Alto Networks PAN-OS","product_id":"PANW-PAN-OS-870"}},{"category":"product_version_range","name":"vers:generic/PAN-OS>=11.2.7-h18","product":{"name":"Palo Alto Networks PAN-OS","product_id":"PANW-PAN-OS-858"}},{"category":"product_version_range","name":"vers:generic/PAN-OS>=11.2.4-h20","product":{"name":"Palo Alto Networks PAN-OS","product_id":"PANW-PAN-OS-859"}},{"category":"product_version_range","name":"vers:generic/PAN-OS<11.1.16","product":{"name":"Palo Alto Networks PAN-OS","product_id":"PANW-PAN-OS-854"}},{"category":"product_version_range","name":"vers:generic/PAN-OS>=11.1.16","product":{"name":"Palo Alto Networks PAN-OS","product_id":"PANW-PAN-OS-854"}},{"category":"product_version_range","name":"vers:generic/PAN-OS>=11.1.13-h9","product":{"name":"Palo Alto Networks PAN-OS","product_id":"PANW-PAN-OS-860"}},{"category":"product_version_range","name":"vers:generic/PAN-OS>=11.1.10-h30","product":{"name":"Palo Alto Networks PAN-OS","product_id":"PANW-PAN-OS-861"}},{"category":"product_version_range","name":"vers:generic/PAN-OS>=11.1.7-h8","product":{"name":"Palo Alto Networks PAN-OS","product_id":"PANW-PAN-OS-862"}},{"category":"product_version_range","name":"vers:generic/PAN-OS>=11.1.6-h35","product":{"name":"Palo Alto Networks PAN-OS","product_id":"PANW-PAN-OS-863"}},{"category":"product_version_range","name":"vers:generic/PAN-OS>=11.1.4-h35","product":{"name":"Palo Alto Networks PAN-OS","product_id":"PANW-PAN-OS-864"}},{"category":"product_version_range","name":"vers:generic/PAN-OS<10.2.18-h8","product":{"name":"Palo Alto Networks PAN-OS","product_id":"PANW-PAN-OS-865"}},{"category":"product_version_range","name":"vers:generic/PAN-OS>=10.2.18-h8","product":{"name":"Palo Alto Networks PAN-OS","product_id":"PANW-PAN-OS-865"}},{"category":"product_version_range","name":"vers:generic/PAN-OS>=10.2.16-h9","product":{"name":"Palo Alto Networks PAN-OS","product_id":"PANW-PAN-OS-866"}},{"category":"product_version_range","name":"vers:generic/PAN-OS>=10.2.13-h23","product":{"name":"Palo Alto Networks PAN-OS","product_id":"PANW-PAN-OS-867"}},{"category":"product_version_range","name":"vers:generic/PAN-OS>=10.2.10-h39","product":{"name":"Palo Alto Networks PAN-OS","product_id":"PANW-PAN-OS-868"}},{"category":"product_version_range","name":"vers:generic/PAN-OS>=10.2.7-h36","product":{"name":"Palo Alto Networks PAN-OS","product_id":"PANW-PAN-OS-869"}}]},{"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-2026-0283","product_status":{"fixed":["PANW-PAN-OS-852","PANW-PAN-OS-855","PANW-PAN-OS-856","PANW-PAN-OS-853","PANW-PAN-OS-870","PANW-PAN-OS-858","PANW-PAN-OS-859","PANW-PAN-OS-854","PANW-PAN-OS-860","PANW-PAN-OS-861","PANW-PAN-OS-862","PANW-PAN-OS-863","PANW-PAN-OS-864","PANW-PAN-OS-865","PANW-PAN-OS-866","PANW-PAN-OS-867","PANW-PAN-OS-868","PANW-PAN-OS-869"],"known_affected":["PANW-PAN-OS-852","PANW-PAN-OS-853","PANW-PAN-OS-854","PANW-PAN-OS-865"],"known_not_affected":["PANW-Cloud-NGFW-1","PANW-Prisma-Access-1"]},"notes":[{"category":"description","text":"An authentication bypass vulnerability in Large Scale VPN ( LSVPN) functionality of Palo Alto Networks PAN-OS software allows an attacker with network access to bypass security restrictions and establish an unauthorized site-to-site VPN connection.\n\nPanorama, Cloud NGFW, and Prisma® Access are not impacted by this vulnerability.\n\n"}],"references":[{"category":"external","summary":"NVD - CVE-2026-0283","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-0283"},{"category":"self","summary":"Palo Alto Networks Security Advisory CVE-2026-0283","url":"https://security.paloaltonetworks.com/CVE-2026-0283"}],"threats":[{"category":"impact","description":"An authentication bypass vulnerability in Large Scale VPN ( LSVPN) functionality of Palo Alto Networks PAN-OS software allows an attacker with network access to bypass security restrictions and establish an unauthorized site-to-site VPN connection.\n\nPanorama, Cloud NGFW, and Prisma® Access are not impacted by this vulnerability.\n\n"}],"scores":[{"cvss_v4":{"version":"4.0","attackVector":"NETWORK","attackComplexity":"LOW","attackRequirements":"NONE","privilegesRequired":"NONE","userInteraction":"NONE","vulnConfidentialityImpact":"LOW","subConfidentialityImpact":"HIGH","vulnIntegrityImpact":"LOW","subIntegrityImpact":"LOW","vulnAvailabilityImpact":"LOW","subAvailabilityImpact":"NONE","Safety":"NOT_DEFINED","Automatable":"NO","Recovery":"USER","valueDensity":"DIFFUSE","vulnerabilityResponseEffort":"MODERATE","providerUrgency":"AMBER","exploitMaturity":"UNREPORTED","baseSeverity":"HIGH","baseScore":7.8,"threatSeverity":"MEDIUM","threatScore":4.5,"vectorString":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:L/VA:L/SC:H/SI:L/SA:N/E:U/AU:N/R:U/V:D/RE:M/U:Amber"},"products":["PANW-PAN-OS-852","PANW-PAN-OS-853","PANW-PAN-OS-854","PANW-PAN-OS-865"]}]}]}