TI-2020-12908 Aliases CVE-2020-16918 GHSA-65j3-9x73-f8rg

Base3D Remote Code Execution Vulnerability

MEDIUM 43CWE-787Published 2020-10-16 · Updated 2026-05-29

Key facts

Attack vector: Local
Privileges required: None
User interaction: Required
Attack complexity: Low
Impact type: Code execution
Confidentiality · integrity · availability: High · High · High
Fix status: Fixed

Attack profile from CVSS 3.1 · CNA. Fix status from CNA. Impact type from CWE-787 and the CVSS impact.

Summary

A remote code execution vulnerability exists when the Base3D rendering engine improperly handles memory. An attacker who successfully exploited the vulnerability would gain execution on a victim system. The security update addresses the vulnerability by correcting how the Base3D rendering engine handles memory.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV

EPSS 0.03851 90th percentileScored 2026-11-07

Fix Fixed Microsoft 365 Apps for Enterprise (Microsoft): https://aka.ms/OfficeSecurityReleases3D Viewer (Microsoft): publication

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation: None
Automatable: No
Technical impact: Total

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

Vendor	Product	Affected versions	Fixed in	Status	Source
Microsoft	Microsoft 365 Apps for Enterprise	16.0.1 to before https://aka.ms/OfficeSecurityReleases	https://aka.ms/OfficeSecurityReleases	Patch available	CNA
Microsoft	3D Viewer	7.0.0 to before publication	publication	Patch available	CNA

Microsoft 365 Apps for Enterprise VendorMicrosoft Affected 16.0.1 to before https://aka.ms/OfficeSecurityReleases Fixed in https://aka.ms/OfficeSecurityReleases Patch available CNA
3D Viewer VendorMicrosoft Affected 7.0.0 to before publication Fixed in publication Patch available CNA

CPE configurations NVD · 2

CPE	Versions	Role	Vendor
cpe:2.3:a:microsoft:365_apps:-::::enterprise:::	not specified by NVD	Vulnerable	Microsoft
cpe:2.3:a:microsoft:3d_viewer:-:::::::*	not specified by NVD	Vulnerable	Microsoft

cpe:2.3:a:microsoft:365_apps:-:*:*:*:enterprise:*:*:* Versions not specified by NVD Vulnerable ·Microsoft
cpe:2.3:a:microsoft:3d_viewer:-:*:*:*:*:*:*:* Versions not specified by NVD Vulnerable ·Microsoft

Remediation

Fix · CNA Microsoft 365 Apps for Enterprise (Microsoft) Fixed in https://aka.ms/OfficeSecurityReleases
Fix · CNA 3D Viewer (Microsoft) Fixed in publication

Timeline

2026-10-02 Threatist record created from CVE-2020-16918
2026-10-03 Alias added: GHSA-65j3-9x73-f8rg
2026-10-14 EPSS moved to the 90th–95th percentile

References

Patch 1

https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2020-16918

TI-2024-14173 Microsoft Outlook Remote Code Execution Vulnerability KEVCVSS 3.1CRITICAL 9.8
TI-2023-09240 Microsoft Outlook Elevation of Privilege Vulnerability KEVCVSS 3.1CRITICAL 9.8
TI-2024-25471 Microsoft Project Remote Code Execution Vulnerability KEVCVSS 3.1HIGH 8.8
TI-2023-17652 Microsoft Outlook Security Feature Bypass Vulnerability KEVCVSS 3.1HIGH 8.8
TI-2026-17368 Microsoft Word Security Feature Bypass Vulnerability KEVCVSS 3.1HIGH 7.8
TI-2026-17363 Microsoft Office Security Feature Bypass Vulnerability KEVCVSS 3.1HIGH 7.8

See all 935 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences