CVE-2026-2336
HIGH EPSS 10.3%
Published Apr 16, 20262mo ago · Modified Jun 17, 20262w ago
8.7 CVSS 4.0
Published Apr 16, 2026 2mo ago
Last Modified Jun 17, 2026 2w ago
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.
CVSS Details
Base Score
Exploitability
Impact
Vector string
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/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X Attack Vector Network
Attack Complexity High
Privileges Required Low
User Interaction None
Scope X
Threat Intelligence
EPSS Exploit Probability
10.3% percentile
Exploit & Patch Status
No Known Exploit
No Patch Available
Weaknesses 1
CWE-331
References 1
- 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
Remediation
No remediation data recorded yet
Check vendor advisories and the NVD entry for patch availability.