CVE-2026-2336: Microchip Istax

High severity, CVSS 8.8. EPSS: 0.2% chance of exploitation in the next 30 days.

A privilege escalation vulnerability in Microchip IStaX allows an authenticated low-privileged user to recover a shared per-device cookie secret from their own webstax_auth session cookie and forge a new cookie with administrative privileges.This issue affects IStaX before 2026.03.

Affected products

• Microchip Istax: before 2026.03 (fixed in 2026.03)

Published 2026-04-16. Last modified 2026-08-12.