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.

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Advisories

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Fixes

Solution

No solution given by the vendor.


Workaround

Restrict access to the management interface to trusted networks and trusted users until devices can be upgraded.

History

Thu, 16 Apr 2026 19:00:00 +0000

Type Values Removed Values Added
First Time appeared Microchip
Microchip istax
Vendors & Products Microchip
Microchip istax

Thu, 16 Apr 2026 18:15:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'total'}, 'version': '2.0.3'}


Thu, 16 Apr 2026 17:30:00 +0000

Type Values Removed Values Added
Description 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.
Title Weak webstax_auth Cookie Authentication Allows Privilege Escalation
Weaknesses CWE-331
References
Metrics cvssV4_0

{'score': 8.7, 'vector': 'CVSS:4.0/AV:N/AC:H/AT:P/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:H'}


Projects

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cve-icon MITRE

Status: PUBLISHED

Assigner: Microchip

Published:

Updated: 2026-04-16T17:34:39.672Z

Reserved: 2026-02-11T10:30:26.167Z

Link: CVE-2026-2336

cve-icon Vulnrichment

Updated: 2026-04-16T17:34:36.932Z

cve-icon NVD

Status : Received

Published: 2026-04-16T18:16:44.927

Modified: 2026-04-16T18:16:44.927

Link: CVE-2026-2336

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-04-16T18:58:25Z

Weaknesses