CVE-2026-0277: CWE-295 Improper Certificate Validation in Palo Alto Networks Prisma Access Agent
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. The Prisma Access Agent on Windows, macOS, Linux, Android and ChromeOS are not affected.
AI Analysis
Technical Summary
This vulnerability (CVE-2026-0277) affects the Prisma Access Agent on iOS due to improper certificate validation (CWE-295). This flaw can be exploited by an attacker to intercept VPN traffic via a man-in-the-middle attack. The issue is specific to the iOS client; other platform clients are not impacted. The CVSS 4.0 base score is 5.7, indicating medium severity. As of the published date, no vendor advisory or patch is available, and the remediation level is unknown.
Potential Impact
An attacker who successfully exploits this vulnerability could intercept and potentially manipulate VPN traffic from the affected iOS Prisma Access Agent, compromising confidentiality and integrity of communications. There is no indication of privilege escalation or availability impact. Other Prisma Access Agent platforms are not impacted.
Mitigation Recommendations
Patch status is not yet confirmed — check the Palo Alto Networks vendor advisory for current remediation guidance. Until a fix is available, users of the Prisma Access Agent on iOS should exercise caution when connecting to untrusted networks. No official mitigation or workaround has been published by the vendor at this time.
CVE-2026-0277: CWE-295 Improper Certificate Validation in Palo Alto Networks Prisma Access Agent
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. The Prisma Access Agent on Windows, macOS, Linux, Android and ChromeOS are not affected.
CVSS v4.0
Score 5.7medium
Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
This vulnerability (CVE-2026-0277) affects the Prisma Access Agent on iOS due to improper certificate validation (CWE-295). This flaw can be exploited by an attacker to intercept VPN traffic via a man-in-the-middle attack. The issue is specific to the iOS client; other platform clients are not impacted. The CVSS 4.0 base score is 5.7, indicating medium severity. As of the published date, no vendor advisory or patch is available, and the remediation level is unknown.
Potential Impact
An attacker who successfully exploits this vulnerability could intercept and potentially manipulate VPN traffic from the affected iOS Prisma Access Agent, compromising confidentiality and integrity of communications. There is no indication of privilege escalation or availability impact. Other Prisma Access Agent platforms are not impacted.
Mitigation Recommendations
Patch status is not yet confirmed — check the Palo Alto Networks vendor advisory for current remediation guidance. Until a fix is available, users of the Prisma Access Agent on iOS should exercise caution when connecting to untrusted networks. No official mitigation or workaround has been published by the vendor at this time.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- palo_alto
- Date Reserved
- 2025-11-03T20:44:36.317Z
- Cvss Version
- 4.0
- State
- PUBLISHED
- Remediation Level
- null
Threat ID: 6a4ffe7a68715ace43fdfbc7
Added to database: 07/09/2026, 20:03:06 UTC
Last enriched: 07/17/2026, 09:50:57 UTC
Last updated: 08/23/2026, 10:52:06 UTC
Views: 127
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