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CVE-2024-43505VulnerabilityPublished Updated

CVE-2024-43505: Microsoft 365 Apps for Enterprise · Insufficient UI Warning of Dangerous Operations

Affects Microsoft 365 Apps for EnterpriseSource GCVE Database

0

Not known to be exploited · CVSS 7.8 High · patch available : patch Microsoft 365 Apps for Enterprise soon.

Data as of 26 Oct 2026, 06:26 UTC

CVSS 3.1 base score
7.8High
How severe the flaw is on the 0–10 CVSS scale.
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.
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:C

Exploitation evidence

  1. Disclosed: evidence found.

    CVE published 8 Oct 2024

  2. Detectable: no evidence on record.

    No public nuclei template indexed

  3. Weaponised: no evidence on record.

    No public exploit code indexed in Metasploit or Exploit-DB

  4. Exploited in the wild: no evidence on record.

    Not in CISA KEV and no source reports exploitation

  5. Observed by OffSeq 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 2026-10-26.

What to do

Affected software

ProductAffectedFixed in
Microsoft Microsoft 365 Apps for EnterpriseAffected
  • =16.0.1
Fixed in–

AI-suggested

An official fix is available from Microsoft. Since this is a cloud-hosted service, Microsoft manages remediation server-side. Users and administrators should ensure their Microsoft 365 Apps for Enterprise are updated to the fixed version as per Microsoft's guidance.

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, which can lead to remote code execution. The vulnerability requires user interaction but can result in full confidentiality, integrity, and availability compromise. An official fix is available from Microsoft, and the product is cloud-hosted, meaning Microsoft manages remediation for the service.

References

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