CVE-2026-0244

High

Description

An improper certificate validation vulnerability in the Palo Alto Networks Prisma SD-WAN ION enables man-in-the-middle (MitM) attacker to impersonate the controller.

SeverityHigh

CVSS8.1

Exploit probability—

Product

Paloaltonetworks Prisma Sd-wan

PublishedMay 13, 2026

First seenMay 13, 2026

Weakness typeCWE-295CWE-295

How to fix

Update

paloaltonetworks prisma_sd-wan6.3.6, 6.4.3, 6.5.3 or later

Vendor advisories

security.paloaltonetworks.com/CVE-2026-0244

Affected products

Product	Affected versions	Fixed in
paloaltonetworks prisma_sd-wan	6.3.1 ≤ v < 6.3.6, 6.4.1 ≤ v < 6.4.3, 6.5.1 ≤ v < 6.5.3, 6.3.6, 6.4.3, 6.5.3	6.3.6, 6.4.3, 6.5.3

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