CVE-2026-0244 Prisma SD-WAN: Improper Certificate Validation Vulnerability

Medium 5.2 Published Updated

A man-in-the-middle attacker can impersonate the controller due to improper certificate validation in Prisma SD-WAN ION devices.

Exploited in the wild
Not known
Login needed
Not needed
Attackable
Local or same network only
Victim action needed
Not needed
Fix
None listed

What is CVE-2026-0244?

CVE-2026-0244 is a medium-severity vulnerability in Palo Alto Networks Prisma SD-WAN ION, published on 13 May 2026. It can only be exploited from the same machine or local network, with no action from the victim.

Official 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.

Weakness: CWE-295

Which versions are affected by CVE-2026-0244?

It affects 1 product.

Products include Paloaltonetworks Prisma Sd-Wan.

How do I fix CVE-2026-0244?

No fix has been published for CVE-2026-0244 yet. Limit exposure of the affected software until one is available.

Is CVE-2026-0244 being exploited?

There is no known exploitation of CVE-2026-0244 in the wild and no public exploit code.

Sources

Also known as GHSA-9343-chmf-h73m.

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