TI-2020-01203 Aliases CVE-2020-1240 GHSA-m734-gp7q-qvrx

A remote code execution vulnerability exists in Microsoft Excel software when the…

MEDIUM 52Published 2020-07-14 · Updated 2024-08-04

Key facts

Attack vector: Network
Privileges required: None
User interaction: Required
Attack complexity: Low
Impact type: —
Confidentiality · integrity · availability: High · High · High
Fix status: No fix listed

Attack profile from CVSS 3.1 · NVD. Fix status from CNA.

Summary

A remote code execution vulnerability exists in Microsoft Excel software when the software fails to properly handle objects in memory, aka 'Microsoft Excel Remote Code Execution Vulnerability'.

Why it matters now

EPSS 0.12631 96th percentileScored 2026-11-07

Fix No fix listed No fixed version in the sources yet

SSVC decision points

Not available: CISA has not published SSVC decision points for this record.

Affected products

Vendor	Product	Affected versions	Fixed in	Status	Source
Microsoft	Microsoft 365 Apps for Enterprise for 32-bit Systems	all versions	—	No fix listed	CNA
Microsoft	Microsoft 365 Apps for Enterprise for 64-bit Systems	all versions	—	No fix listed	CNA

Microsoft 365 Apps for Enterprise for 32-bit Systems VendorMicrosoft Affected all versions Fixed in — No fix listed CNA
Microsoft 365 Apps for Enterprise for 64-bit Systems VendorMicrosoft Affected all versions Fixed in — No fix listed CNA

CPE configurations NVD · 1

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

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

Remediation

No fixed version listed by the sources yet.

Timeline

2026-10-02 Threatist record created from CVE-2020-1240
2026-10-03 Alias added: GHSA-m734-gp7q-qvrx

References

Patch 1

https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2020-1240

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