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CVE-2021-36945

24
FAUCET Score

CVE-2021-36945 is an Elevation of Privilege vulnerability affecting the Microsoft Windows 10 Update Assistant. With a CVSS score of 7.8 (High), it allows an unauthenticated attacker to gain full control over an affected system if a user is tricked into interacting with a malicious application. While no public exploit code or active exploitation has been observed, the vulnerability has garnered some community discussion and media coverage, indicating awareness within the cybersecurity landscape.

Impacted Technologies

VendorProductVersion(s)CPE
Range not provided by sourceCPE matchmatch criteria
cpe:2.3:a:microsoft:windows_10_update_assistant:-:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.1

7.3HIGH

CVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:H

Attack Vector
LOCAL
Attack Complexity
LOW
Privileges Required
LOW
User Interaction
REQUIRED
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
Exploitability Score
1.3
Impact Score
5.9
CvssVersion
3.1

Exploit Intelligence

EPSS Score
1.73%
Probability of exploitation in next 30 days
EPSS Percentile
75.2%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0173 is in the 74th percentile among its peer group of 11,617 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.1 Reddit, 0.1 Bluesky, 0.0 Mastodon, and 0.2 GitHub mentions.

Media Mentions

The average CVE in this peer group has 0.3 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Patch Available

Vendor Patches (2)

microsoftpatch availablevia nvd_reference
View patch
microsoftpatch availablevia msrc
Product: Windows Update Assistant
View patch

Vendor Advisories (1)

microsoft2021-Aug/CVE-2021-36945Important

Windows 10 Update Assistant Elevation of Privilege Vulnerability

Aug 10, 2021

References

portal.msrc.microsoft.com / en-US/security-guidance/advisory/CVE-2021-36945
PatchVendor Advisory