PatchTheCVECVE-2026-2336: A privilege escalation vulnerability in Microchip IStaX allows an authenticated low-privileged user to recover
CVE-2026-2336 is a high-severity flaw (CVSS 8.8) affecting istax. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.
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.
Why this priority
- High severity
A fixed release or distro patch exists.
Risk facts
| CVSS score | 8.8 (High) |
| Attack vector | Network (remote) |
| Attack complexity | Low |
| Privileges needed | Low |
| User interaction | None |
| EPSS exploit chance | 0.2% (top 86%) |
| CISA exploited list | No |
| Weakness | CWE-331 |
| Published | 2026-04-16 |
| Last modified | 2026-10-26 |
Last updated 2026-10-26 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score
Am I affected?
Timeline
- Published CVE record published
- Updated Record last modified
Scores and fixes here are computed automatically from those and other public sources. Confirm with the vendor advisory before changing production systems.
Quick answers
How do I fix CVE-2026-2336?
istax: upgrade to 2026.03. Exact commands for each OS are on this page.
Is CVE-2026-2336 being exploited?
CVE-2026-2336 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.
What does CVE-2026-2336 affect?
CVE-2026-2336 affects istax. Severity is high (CVSS 8.8). 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 privilege
How urgent is CVE-2026-2336?
Priority 34/100. High severity