Microsoft 365 Apps for Enterprise vulnerability

Relative path traversal in Microsoft Office Access allows an unauthorized attacker to execute code locally.

Published 9 Dec 2025Updated 7 Oct 20261 sources
CVSS 7.8

What happened

Relative path traversal in Microsoft Office Access allows an unauthorized attacker to execute code locally.

Affected versions

Microsoft 365 Apps for Enterprise: 16.0.1 through before https://aka.ms/OfficeSecurityReleases (custom); 16.0.0 through before 16.0.5530.1000 (custom); 19.0.0 through before https://aka.ms/OfficeSecurityReleases (custom); 16.0.0 through before https://aka.ms/OfficeSecurityReleases (custom) Fixed: See vendor advisory.

Why it matters

Review the vendor advisory and exposure of the affected product to determine operational impact.

Detection & mitigation

  • Apply vendor-provided updates or mitigations.
  • Review affected product exposure and access logs.

Public PoC references

No public PoC reference has passed the current publication threshold.