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CVE-2020-16918

21
FAUCET Score

CVE-2020-16918 is a remote code execution vulnerability affecting Microsoft 365 Apps and 3D Viewer, stemming from improper memory handling in the Base3D rendering engine. With a CVSS score of 7.8 (HIGH), successful exploitation could grant an attacker full control over the victim's system, requiring user interaction but with low attack complexity. While not listed in CISA's KEV catalog and lacking public exploit code, it has garnered significant community discussion and media coverage, indicating awareness and potential for future exploitation.

Impacted Technologies

VendorProductVersion(s)CPE
Range not provided by sourceCPE matchmatch criteria
cpe:2.3:a:microsoft:365_apps:-:*:*:*:enterprise:*:*:*
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
3.86%
Probability of exploitation in next 30 days
EPSS Percentile
89.1%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0386 is in the 90th percentile among its peer group of 11,617 CVEs.

Social Chatter

No social media mentions found for this CVE.

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 (4)

microsoftpatch availablevia nvd_reference
View patch
microsoftpatch availablevia msrc
Product: Microsoft 365 Apps for Enterprise for 32-bit Systems
microsoftpatch availablevia msrc
Product: Microsoft 365 Apps for Enterprise for 64-bit Systems
microsoftpatch availablevia msrc
Product: 3D Viewer
View patch

Vendor Advisories (1)

microsoft2020-Oct/CVE-2020-16918Important

Base3D Remote Code Execution Vulnerability

Oct 13, 2020

References

portal.msrc.microsoft.com / en-US/security-guidance/advisory/CVE-2020-16918
PatchVendor Advisory