High severity · published Apr 14, 2026
CVE-2026-27924
Desktop Window Manager Elevation of Privilege Vulnerability
7.8
CVSS
0.3%
EPSS
No
On KEV
Description
Use after free in Desktop Window Manager 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 21% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
W1
Windows 10 Version 21H2 · Microsoft
10.0.19044.0 before 10.0.19044.7184 · source: vendor
W1
Windows 10 Version 22H2 · Microsoft
10.0.19045.0 before 10.0.19045.7184 · source: vendor
W1
Windows 11 version 23H2 · Microsoft
10.0.22631.0 before 10.0.22631.6936; 10.0.22631.0 before 10.0.22631.6936 · source: vendor
WS
Windows Server 2022 · Microsoft
10.0.20348.0 before 10.0.20348.5020 · source: vendor, NVD
WS
Windows Server 2022, 23H2 Edition (Server Core installation) · Microsoft
10.0.25398.0 before 10.0.25398.2274 · source: vendor
W1
Windows 10 21h2 · Microsoft
before 10.0.19044.7184; before 10.0.19044.7184; before 10.0.19044.7184 · source: NVD
W1
Windows 10 22h2 · Microsoft
before 10.0.19045.7184; before 10.0.19045.7184; before 10.0.19045.7184 · source: NVD
W1
Windows 11 23h2 · Microsoft
before 10.0.22631.6936; before 10.0.22631.6936 · source: NVD
WS
Windows Server 2022 23h2 · Microsoft
before 10.0.25398.2274 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-27924
CVE.org
https://www.cve.org/CVERecord?id=CVE-2026-27924
Vendor Advisory
https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-27924
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