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CVE-2021-31942

26
FAUCET Score

CVE-2021-31942 is a Remote Code Execution vulnerability affecting Microsoft 3D Viewer. This high-severity flaw (CVSS 7.8) can be exploited with low complexity, requiring user interaction, and could lead to high impact on confidentiality, integrity, and availability. While not listed in CISA's KEV catalog and lacking public exploit code in Metasploit, Nuclei, or ExploitDB, it was addressed in Microsoft's June 2021 Patch Tuesday, indicating its significance. Community discussion and media coverage are minimal, suggesting limited public awareness or active exploitation at the time of analysis.

Impacted Technologies

VendorProductVersion(s)CPE
>= 7.0.0, < 7.2105.4012.0CPE match
cpe:2.3:a:microsoft:3d_viewer:*:*:*:*:*:*:*:*
Range not provided by sourceCPE matchmatch criteria
cpe:2.3:a:microsoft:3d_viewer:-:*:*:*:*:*:*:*

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
2.17%
Probability of exploitation in next 30 days
EPSS Percentile
80.4%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0217 is in the 81st 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: 3D ViewerFixed in: 7.2105.4012.0
View patch

Vendor Advisories (1)

microsoft2021-Jun/CVE-2021-31942Important

3D Viewer Remote Code Execution Vulnerability

Jun 8, 2021

References

portal.msrc.microsoft.com / en-US/security-guidance/advisory/CVE-2021-31942
PatchVendor Advisory