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CVE-2021-31945

25
FAUCET Score

CVE-2021-31945 is a Remote Code Execution vulnerability affecting Microsoft Paint 3D. With a CVSS score of 7.8 (High), it allows an unauthenticated attacker to achieve high impact to confidentiality, integrity, and availability through a low-complexity attack requiring user interaction. While not currently listed in CISA's KEV catalog, this vulnerability was addressed in Microsoft's June 2021 Patch Tuesday, indicating its significance. There is no public exploit code available, and community discussion and media coverage are limited, suggesting a lower current threat profile.

Impacted Technologies

VendorProductVersion(s)CPE
>= 6.0.0, < 6.2105.4017.0CPE match
cpe:2.3:a:microsoft:paint_3d:*:*:*:*:*:*:*:*
Range not provided by sourceCPE matchmatch criteria
cpe:2.3:a:microsoft:paint_3d:-:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.1

7.8HIGH

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

Attack Vector
LOCAL
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
REQUIRED
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
Exploitability Score
1.8
Impact Score
5.9
CvssVersion
3.1

Exploit Intelligence

EPSS Score
2.28%
Probability of exploitation in next 30 days
EPSS Percentile
81.4%
Percentile rank of EPSS score among Peer Group
As of 2026-07-28
Model: v2026.06.15
This CVE's current EPSS score of 0.0228 is in the 82nd percentile among its peer group of 11,621 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: Paint 3DFixed in: 6.2105.4017.0
View patch

Vendor Advisories (1)

microsoft2021-Jun/CVE-2021-31945Important

Paint 3D Remote Code Execution Vulnerability

Jun 8, 2021

References

portal.msrc.microsoft.com / en-US/security-guidance/advisory/CVE-2021-31945
PatchVendor Advisory
zerodayinitiative.com / advisories/ZDI-21-667
Third Party Advisory