CVE-2026-0243

Medium

Description

A denial of service (DoS) vulnerability in Palo Alto Networks Prisma SD-WAN ION devices enables an unauthenticated attacker in a network adjacent to a Prisma SD-WAN ION device to cause a system disruption by sending a specially crafted IPv6 packet.

SeverityMedium

CVSS6.5

Exploit probability—

Product

Paloaltonetworks Prisma Sd-wan

PublishedMay 13, 2026

First seenMay 13, 2026

Weakness typeCWE-606CWE-606

How to fix

Update

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

Vendor advisories

security.paloaltonetworks.com/CVE-2026-0243

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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