Review reviewHigh

CVE-2026-42902

Microsoft Microsoft PowerToys, powertoys

Improper authorization in Microsoft PowerToys allows an authorized attacker to elevate privileges locally.

CVSS
7.8
EPSS
0.29%
21.4% percentile
CISA KEV
Not listed
Published
2026.06.10
PRIORITY ASSESSMENT

Review review

The CVSS severity warrants an early asset and exposure review.

Known exploitationNot established by KEV
Exploit probability0.29%
Technical severityCVSS 7.8

Vulnerability overview

Improper authorization in Microsoft PowerToys allows an authorized attacker to elevate privileges locally.

Affected product and versions

Product
Microsoft Microsoft PowerToys, powertoys
Affected versions
>= 0.1 < v0.99.1, < 0.99.1
Fixed versions
0.99.1

Recommended response sequence

Confirm exposure before applying a vendor-supported change.

Full remediation guide
  1. 1
    Identify

    Confirm that Microsoft Microsoft PowerToys, powertoys and an affected version are present.

  2. 2
    Prioritize

    Combine exploitation signals with asset exposure and business criticality.

  3. 3
    Remediate

    Follow the vendor advisory or supported update path and preserve rollback options.

  4. 4
    Verify

    Recheck the version, service health, access paths, and relevant logs.

Technical data

CVSS vector
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
CWE
CWE-285