CVE-2026-83681: Microsoft PowerToys Tampering Vulnerability

Overview

Severity

Medium (CVSS 5.5)

CVSS Vector

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N/E:U/RL:O/RC:C

Category

Tampering

Exploit Status

Not Exploited

Exploitation Likelihood

Unlikely

Patch Tuesday

2026-Oct

Released

2026-10-13

Description

Weak authentication in Microsoft PowerToys allows an authorized attacker to perform tampering locally.

Affected Products (1)

Apps

• Microsoft PowerToys

Security Updates (1)

• Release Notes

Acknowledgments

<a href="https://www.linkedin.com/in/erencanozmen/">Eren Can &#214;zmen</a> with InfinitumIT, alf

Revision History

• 2026-10-13: Information published.