CVE-2021-43905

CRITICAL

Microsoft 365 Copilot < 18.2110.13110.0 - Remote Code Execution

Title source: llm
STIX 2.1

Description

Microsoft Office app Remote Code Execution Vulnerability

References (1)

Core 1
Core References

Scores

CVSS v3 9.6
EPSS 0.0282
EPSS Percentile 85.1%
Attack Vector NETWORK
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:H

CISA SSVC

Vulnrichment
Exploitation none
Automatable no
Technical Impact total

Details

Status published
Products (2)
microsoft/365_copilot < 18.2110.13110.0
Microsoft/Office app < publication
Published Dec 15, 2021
Tracked Since Feb 18, 2026