Vulnerability · Published May 13, 2026 · Assigned by palo_alto

CVE-2026-0248Prisma Access Agent: Improper Certificate Validation Vulnerability

Medium 6.2

In plain English

A medium-severity improper certificate validation in Prisma Access Agent from Palo Alto Networks. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.2% (higher than 9% of all known vulnerabilities).

Severity (CVSS 4.0)6.2Medium

Exploit odds (30 days)0.2%top 91.5% of all CVEs

Exploited in the wildNo reportsCISA SSVC: none

Attack toolingNoneno public tooling known

Official description

An improper certificate validation vulnerability in the Prisma Access Agent® for Android and Chrome OS enables an attacker to perform a man-in-the-middle (MitM) attack to intercept VPN traffic. By presenting a certificate for any domain issued by a trusted Certificate Authority, the attacker can capture sensitive device information. The Prisma Access Agent on macOS, Windows, Linux and iOS are not affected.

Affected products (as reported)

Vendor	Product	Versions
Palo Alto Networks	Prisma Access Agent	0 – before 26.2.1
Palo Alto Networks	Prisma Access Agent	see references

Weakness: CWE-295 · Vector: CVSS:4.0/AV:A/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:N/SC:L/SI:L/SA:N/E:U/AU:Y/R:A/V:D/RE:M/U:Amber

References

https://security.paloaltonetworks.com/CVE-2026-0248 vendor-advisory