High severity · published Jun 9, 2026
CVE-2026-42902
Microsoft PowerToys Elevation of Privilege Vulnerability
7.8
CVSS
0.3%
EPSS
No
On KEV
Description
Improper authorization in Microsoft PowerToys allows an authorized attacker to elevate privileges locally.
CVSS vector
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Attack vector
Local
Complexity
Low
Privileges
Low
User interaction
None
Confidentiality
High
Integrity
High
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.3% · higher than 22% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
MP
Microsoft PowerToys · Microsoft
0.1 before v0.99.1 · source: vendor
PO
Powertoys · Microsoft
before 0.99.1 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-42902
CVE.org
https://www.cve.org/CVERecord?id=CVE-2026-42902
Patch
https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-42902
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