CVE-2026-0244

HIGHCVSS 8.1/10EPSS 0.11%

Last modified

CVE-2026-0244 is a high-severity vulnerability rated 8.1/10 on the CVSS scale. 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.. EPSS estimates a 0.11% chance of exploitation in the next 30 days.

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.

Metrics

Weakness Enumeration

Affected Software

VendorProductVersions
PaloaltonetworksPrisma Sd-Wan>= 6.3.1, < 6.3.6
PaloaltonetworksPrisma Sd-Wan>= 6.4.1, < 6.4.3
PaloaltonetworksPrisma Sd-Wan>= 6.5.1, < 6.5.3
PaloaltonetworksPrisma Sd-Wan6.3.6
PaloaltonetworksPrisma Sd-Wan6.4.3
PaloaltonetworksPrisma Sd-Wan6.5.3

References

Timeline

Published
Last Modified
Status
Analyzed

Frequently Asked Questions

What is CVE-2026-0244?
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.
How severe is CVE-2026-0244?
CVE-2026-0244 has a CVSS score of 8.1/10 (HIGH severity). The EPSS model estimates a 0.11% probability of exploitation in the next 30 days.
How do I fix CVE-2026-0244?
Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

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Source: NVD / NIST