CVE-2026-83681 Microsoft PowerToys Tampering Vulnerability
An authorized local attacker can exploit weak authentication in Microsoft PowerToys to perform unauthorized tampering.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Local or same network only
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2026-83681?
CVE-2026-83681 is a medium-severity authentication bypass vulnerability in Microsoft PowerToys, published on 13 Oct 2026. It can only be exploited from the same machine or local network, with no action from the victim.
Official description
Weak authentication in Microsoft PowerToys allows an authorized attacker to perform tampering locally.
Weakness: CWE-1390
Which versions are affected by CVE-2026-83681?
How do I fix CVE-2026-83681?
No fix has been published for CVE-2026-83681 yet. Limit exposure of the affected software until one is available.
Upgrade, and rotate credentials and sessions that may have been exposed. More about Authentication bypass.
Is CVE-2026-83681 being exploited?
There is no known exploitation of CVE-2026-83681 in the wild and no public exploit code.
Sources
Also known as GHSA-52h2-r8m2-r88f.