CVE-2020-1240

8.8 highEPSS 13%

High (8.8) in microsoft 365 apps. EPSS 13% chance of exploitation in the next 30 days.

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'.

Severity

CVSS 3.1

8.8 high

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

EPSS: 13% chance of exploitation in the next 30 days; higher than 96% of CVEs (scores of 2026-10-31)
Published: 2020-07-14
Modified: 2026-06-17
Record from: the NVD, synced 2026-10-19

Affected

microsoft:365_apps

References

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

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