November 14, 2026

CVE Watchtower

CVE-2026-2336Microchip IStaX

NVD

Vulnerability Summary

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.
Severity Level
UNKNOWN
Published Date
Apr 16, 2026
Last Modified
Apr 16, 2026
Exploitation Status
No confirmed exploitation yet
EPSS Score (30-Day)
0.05%Probability
Root Weakness (CWE)
CWE-331 β†—
See the MITRE CWE entry for the full definition of this weakness.
CVSS v4.0 Base Metrics — Score 8.7 (HIGH)
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
Attack VectorNetwork
Attack ComplexityHigh
Attack RequirementsPresent
Privileges RequiredLow
User InteractionNone
Confidentiality (Vulnerable System)High
Integrity (Vulnerable System)High
Availability (Vulnerable System)High
Confidentiality (Subsequent System)None
Integrity (Subsequent System)None
Availability (Subsequent System)High

Affected & Patched Versions

Affected Versions
  • Microchip IStaX < 2026.03
Patched Versions
  • Microchip IStaX 2026.03

What to do

Fix it during your normal patch cycle. No exploitation is confirmed yet.

  1. Check whether you run Microchip IStaX and which version.
  2. Update to a patched version listed above, then confirm the new version.

Timeline

  • Apr 16, 2026Published
  • Apr 16, 2026Record last modified

Score, severity and exploitation changes are tracked from the day Watchtower started logging them.

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Related Coverage

External References

Data last checked: Nov 14, 2026 01:09 UTC