{"document":{"category":"csaf_vex","csaf_version":"2.1","notes":[{"category":"summary","text":"Palo Alto Networks PSIRT provided VEX document. This document is autogenerated.","title":" Prisma Access Agent: Improper Certificate Validation on iOS"}],"publisher":{"category":"vendor","name":"Palo Alto Networks","namespace":"https://security.paloaltonetworks.com"},"title":"Palo Alto Networks PSIRT provided VEX document: CVE-2026-0277","distribution":{"text":"Copyright © 2024 Palo Alto Networks. All rights reserved.","tlp":{"label":"CLEAR","url":"https://www.first.org/tlp/"}},"tracking":{"current_release_date":"2026-07-08T20:40:35.502Z","generator":{"date":"2026-07-08T20:40:35.502Z","engine":{"name":"Vulnogram","version":"0.1.0-dev"}},"id":"CVE-2026-0277","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":"Prisma Access Agent","category":"product_name","branches":[{"category":"product_version","name":"Prisma Access Agent 0","product":{"name":"Palo Alto Networks Prisma Access Agent","product_id":"PANW-Prisma-Access-Agent-3"}},{"category":"product_version_range","name":"vers:generic/Prisma Access Agent>=26.2.1","product":{"name":"Palo Alto Networks Prisma Access Agent","product_id":"PANW-Prisma-Access-Agent-4"}},{"category":"product_version","name":"Prisma Access Agent All","product":{"name":"Palo Alto Networks Prisma Access Agent","product_id":"PANW-Prisma-Access-Agent-2"}}]}]}]},"vulnerabilities":[{"cve":"CVE-2026-0277","product_status":{"fixed":["PANW-Prisma-Access-Agent-4"],"known_affected":["PANW-Prisma-Access-Agent-3"],"known_not_affected":["PANW-Prisma-Access-Agent-2"]},"notes":[{"category":"description","text":"An improper certificate validation vulnerability in the Prisma® Access Agent for iOS enables an attacker to perform a man-in-the-middle (MitM) attack to intercept VPN traffic.\n\nThe Prisma Access Agent on Windows, macOS, Linux, Android and ChromeOS are not affected.\n"}],"references":[{"category":"external","summary":"NVD - CVE-2026-0277","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-0277"},{"category":"self","summary":"Palo Alto Networks Security Advisory CVE-2026-0277","url":"https://security.paloaltonetworks.com/CVE-2026-0277"}],"threats":[{"category":"impact","description":"An improper certificate validation vulnerability in the Prisma® Access Agent for iOS enables an attacker to perform a man-in-the-middle (MitM) attack to intercept VPN traffic.\n\nThe Prisma Access Agent on Windows, macOS, Linux, Android and ChromeOS are not affected.\n"}],"scores":[{"cvss_v4":{"version":"4.0","attackVector":"ADJACENT","attackComplexity":"LOW","attackRequirements":"PRESENT","privilegesRequired":"NONE","userInteraction":"PASSIVE","vulnConfidentialityImpact":"HIGH","subConfidentialityImpact":"HIGH","vulnIntegrityImpact":"HIGH","subIntegrityImpact":"HIGH","vulnAvailabilityImpact":"NONE","subAvailabilityImpact":"NONE","Safety":"NOT_DEFINED","Automatable":"NO","Recovery":"USER","valueDensity":"DIFFUSE","vulnerabilityResponseEffort":"MODERATE","providerUrgency":"AMBER","exploitMaturity":"UNREPORTED","baseSeverity":"HIGH","baseScore":8.7,"threatSeverity":"MEDIUM","threatScore":5.7,"vectorString":"CVSS:4.0/AV:A/AC:L/AT:P/PR:N/UI:P/VC:H/VI:H/VA:N/SC:H/SI:H/SA:N/E:U/AU:N/R:U/V:D/RE:M/U:Amber"},"products":["PANW-Prisma-Access-Agent-3"]}]}]}