CVE-2026-0277 PUBLISHED

Prisma Access Agent: Improper Certificate Validation on iOS

Assigner: palo_alto
Reserved: 03.11.2025 Published: 09.07.2026 Updated: 10.07.2026

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.

Metrics

CVSS 4.0

CVSS Vector: 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
CVSS Score: 5.7

Exploitability Metrics		Vulnerable System Impact Metrics		Subsequent System Impact Metrics
Attack Vector	Adjacent	Confidentiality	High	Confidentiality	High
Attack Complexity	Low	Integrity	High	Integrity	High
Attack Requirements	Present	Availability	None	Availability	None
Privileges Required	None
User Interaction	Passive

CVSS 4.0

Product Status

Vendor	Palo Alto Networks
Product	Prisma Access Agent
Versions	Default: unaffected affected from 0 to 26.2.1 (excl.)

Vendor	Palo Alto Networks
Product	Prisma Access Agent
Versions	Default: unaffected Version All is unaffected

Credits

our internal security research teams finder

References

https://security.paloaltonetworks.com/CVE-2026-0277

Problem Types

CWE-295 Improper Certificate Validation CWE

Impacts

CAPEC-94 Adversary in the Middle (AiTM)