What is CVE-2026-2336?

CVE-2026-2336 is a high-severity vulnerability in Microchip Istax, classified under Insufficient Entropy. CVSS score: 8.8/10. Published 2026-04-16.

How severe is CVE-2026-2336?

High severity. CVSS v3 base score is 8.8 out of 10.

Vulnerability in Microchip Istax

CVE-2026-2336

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.

EPSS: 0.002 (10.4th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 8.8 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H.

Affected products

Microchip Istax — versions 0

Weakness classification (CWE)

CWE-331 — Insufficient Entropy

References

dc3f6da9-85b5-4a73-84a2-2ec90b40fca5 (vendor-advisory, Broken Link)

Frequently asked questions

What is CVE-2026-2336?: CVE-2026-2336 is a high-severity vulnerability in Microchip Istax, classified under Insufficient Entropy. CVSS score: 8.8/10. Published 2026-04-16.
How severe is CVE-2026-2336?: High severity. CVSS v3 base score is 8.8 out of 10.