CVE-2025-27475

Windows Update Stack Elevation of Privilege Vulnerability

Severity Score

7.0

*CVSS v3.1

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

*Multiple Sources

Exploited in Wild

*KEV

Decision

Track*

*SSVC

Descriptions

Sensitive data storage in improperly locked memory in Windows Update Stack allows an authorized attacker to elevate privileges locally.

*Credits: N/A

CVSS Scores

Attack Vector

Local

Attack Complexity

High

Privileges Required

Low

User Interaction

None

Scope

Unchanged

Confidentiality

High

Integrity

High

Availability

High

Attack Vector

Local

Attack Complexity

High

Privileges Required

Low

User Interaction

None

Scope

Unchanged

Confidentiality

High

Integrity

High

Availability

High

Attack Vector

Local

Attack Complexity

High

Authentication

Single

Confidentiality

Complete

Integrity

Complete

Availability

Complete

* Common Vulnerability Scoring System

SSVC

Decision:Track*

Exploitation

None

Automatable

Tech. Impact

Total

* Organization's Worst-case Scenario

Timeline

2025-02-26 CVE Reserved
2025-04-08 CVE Published
2025-04-09 EPSS Updated
2025-04-12 CVE Updated
---------- Exploited in Wild
---------- KEV Due Date
---------- First Exploit

CWE

CWE-591: Sensitive Data Storage in Improperly Locked Memory

CAPEC

References (1)

URL	Tag	Source

URL	Date	SRC

URL	Date	SRC

URL	Date	SRC
https://msrc.microsoft.com/update-guide/vulnerability/CVE-2025-27475	2025-04-08

Affected Vendors, Products, and Versions

Vendor		Product				Version		Other		Status
Vendor	Product	Version	Other	Status	<-- -->	Vendor	Product	Version	Other	Status
Microsoft Search vendor "Microsoft"		Windows 11 Version 22H2 Search vendor "Microsoft" for product "Windows 11 Version 22H2"				>= 10.0.22621.0 < 10.0.22621.5191 Search vendor "Microsoft" for product "Windows 11 Version 22H2" and version " >= 10.0.22621.0 < 10.0.22621.5191"		en		Affected
Microsoft Search vendor "Microsoft"		Windows 11 Version 22H3 Search vendor "Microsoft" for product "Windows 11 Version 22H3"				>= 10.0.22621.5191 < 10.0.22631.0 Search vendor "Microsoft" for product "Windows 11 Version 22H3" and version " >= 10.0.22621.5191 < 10.0.22631.0"		en		Affected
Microsoft Search vendor "Microsoft"		Windows 11 Version 23H2 Search vendor "Microsoft" for product "Windows 11 Version 23H2"				>= 10.0.22631.0 < 10.0.22631.5191 Search vendor "Microsoft" for product "Windows 11 Version 23H2" and version " >= 10.0.22631.0 < 10.0.22631.5191"		en		Affected
Microsoft Search vendor "Microsoft"		Windows 11 Version 24H2 Search vendor "Microsoft" for product "Windows 11 Version 24H2"				>= 10.0.26100.0 < 10.0.26100.3775 Search vendor "Microsoft" for product "Windows 11 Version 24H2" and version " >= 10.0.26100.0 < 10.0.26100.3775"		en		Affected