CVE-2025-27475
Windows Update Stack Elevation of Privilege Vulnerability
Sensitive data storage in improperly locked memory in Windows Update Stack allows an authorized attacker to elevate privileges locally.
Attack profile
How easy it is to exploit
- Attack vector
- Local
- Complexity
- High
- Privileges needed
- Low
- User interaction
- None
What an attacker can affect
- Confidentiality
- High
- Integrity
- High
- Availability
- High
Exploit likelihood
What each source reports
CVE List Score used
Windows Update Stack Elevation of Privilege Vulnerability
Sensitive data storage in improperly locked memory in Windows Update Stack allows an authorized attacker to elevate privileges locally.
- Record
CVE-2025-27475- CVSS 3.1
- 7.0 High
CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C - Weakness
- CWE-591
- Updated
- 2026-11-02
EUVDEUVD-2025-10173
Sensitive data storage in improperly locked memory in Windows Update Stack allows an authorized attacker to elevate privileges locally.
- Record
EUVD-2025-10173- CVSS 3.1
- 7.0 High
CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C - Updated
- 2026-11-02
GitHub AdvisoriesGHSA-jjwr-7vqh-8gf4
Sensitive data storage in improperly locked memory in Windows Update Stack allows an authorized...
Sensitive data storage in improperly locked memory in Windows Update Stack allows an authorized attacker to elevate privileges locally.
- Record
GHSA-jjwr-7vqh-8gf4- CVSS 3.1
- 7.0 High
CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H - Weakness
- CWE-591
- Updated
- 2026-11-02
NVD
Sensitive data storage in improperly locked memory in Windows Update Stack allows an authorized attacker to elevate privileges locally.
- Record
CVE-2025-27475- CVSS 3.1
- 7.0 High
CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H - Weakness
- CWE-591
- Updated
- 2026-11-02
Affected products
History
| Recorded | Changed | Sources |
|---|---|---|
| first indexed | CVE List, EUVD, GitHub Advisories, NVD |
Dates are when Every CVE recorded each change. Upstream dates may differ.
In short
CVE-2025-27475 is a high vulnerability (CVSS 7.0) in Microsoft Windows 11 Version 22h2, published April 8, 2025. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 0.37%, the 31st percentile. No source names a fixed version.