CVE-2026-0244

Prisma SD-WAN: Improper Certificate Validation Vulnerability

State: Published
Severity: 5.2 Medium
Published: May 13, 2026
Updated: May 13, 2026
Reserved: Nov 3, 2025

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.

Scores

CVSS	Score	Vector	Source
4.0	5.2 Medium	CVSS:4.0/AV:A/AC:L/AT:P/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/AU:Y/R:U/V:D/RE:M/U:Amber	palo_alto

Weaknesses

CWE-295 Improper Certificate Validation

Affected Products

Product	Versions
Prisma SD-WAN IONPalo Alto Networks	6.5.0 to before 6.5.3-b15Affectedfrom 6.5.3-b15Not affected 6.4.0 to before 6.4.3-b8Affectedfrom 6.4.3-b8Not affected 6.3.0 to before 6.3.6-b10Affectedfrom 6.3.6-b10Not affected 6.1.0Not affected 5.6.0Not affected

References

https://security.paloaltonetworks.com/CVE-2026-0244vendor-advisory

Every record here comes from the CVE Program’s CVE List. © 1999–2026 The MITRE Corporation. CVE is a registered trademark of The MITRE Corporation. The records are reproduced under the CVE Program terms of use.