CVE-2026-2336

UNKNOWN 0.0

Weak webstax_auth Cookie Authentication Allows Privilege Escalation

CVSS Score

0.0

EPSS Score

0.0%

EPSS Percentile

0th

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.

CWE	CWE-331
Vendor	microchip
Product	istax
Published	Apr 16, 2026
Last Updated	Apr 16, 2026

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Affected Versions

Microchip / IStaX

0 < 2026.03

References

NVD ↗ CVE.org ↗ EPSS Data ↗

microchip.com: https://www.microchip.com/en-us/solutions/technologies/embedded-security/how-to-report-potential-product-security-vulnerabilities/istax-privilege-escalation-via-weak-cookie-authentication

Credits

Rickard Jonsson