CVE-2024-43505: Microsoft 365 Apps for Enterprise · Insufficient UI Warning of Dangerous Operations
Affects Microsoft 365 Apps for EnterpriseSource CVE Database V5
Not known to be exploited · CVSS 7.8 High · patch available : patch Microsoft 365 Apps for Enterprise soon.
Data as of 6 Nov 2026, 23:23 UTC
- EPSS
- 0.7% chance of exploitation in 30 days – higher than 54% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
- CISA SSVC
- Exploitation
- No evidence of active exploitation and no public proof of concept
- Automatable
- Attackers cannot reliably automate steps 1–4 of the kill chain
- Technical impact
- Total control over the software or total information disclosure
CISA SSVC assessment, 2024-10-08.
- Patch
- Available
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H/E:U/RL:O/RC:CExploitation evidence
Disclosed: evidence found.
CVE published 8 Oct 2024
Detectable: no evidence on record.
No public nuclei template indexed
Weaponized: no evidence on record.
No public exploit code indexed in Metasploit or Exploit-DB
Exploited in the wildExploited: no evidence on record.
Not in CISA KEV and no source reports exploitation
Observed by OffSeq MirageSeen by Mirage: no evidence on record.
No attack traffic recorded by OffSeq Mirage sensors
A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 6 Nov 2026.
What to do
Affected software
| Product | Affected | Fixed in |
|---|---|---|
| MicrosoftMicrosoft 365 Apps for Enterprise | Affected
| Fixed in– |
| MicrosoftMicrosoft Office 2019 | Affected
| Fixed in– |
| MicrosoftMicrosoft Office LTSC 2021 | Affected
| Fixed in– |
| MicrosoftMicrosoft Office LTSC 2024 | Affected
| Fixed in– |
AI-suggested
An official fix is available from Microsoft. Users and administrators should apply the provided updates as detailed in the Microsoft security advisory at https://msrc.microsoft.com/update-guide/vulnerability/CVE-2024-43505. Since this is a cloud service, Microsoft manages remediation server-side. No additional mitigation actions are required beyond applying the official fix.
Description
CVE-2024-43505 is a high-severity vulnerability in Microsoft 365 Apps for Enterprise, specifically affecting Microsoft Office Visio. It involves insufficient user interface warnings for dangerous operations, potentially enabling remote code execution. The vulnerability requires user interaction but can lead to full compromise of confidentiality, integrity, and availability. An official fix is available from Microsoft.