Main Vulnerability Database Vulnerabilities #VU126228

Out-of-bounds read in Microsoft 365 Apps for Enterprise and Microsoft Office LTSC - CVE-2026-33822

Published: April 15, 2026

Vulnerability identifier: #VU126228

CSH Severity: Medium

CVSS v4: 4.6 [CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:A/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N]

CVE-ID: CVE-2026-33822

CWE-ID: CWE-125

Exploitation vector: Remote access

Exploit availability: No public exploit available

Vulnerability details

The vulnerability allows a remote attacker to gain access to potentially sensitive information.

The vulnerability exists due to a boundary condition in Microsoft Word. A remote attacker can create a specially crafted file, trick the victim into opening it, trigger an out-of-bounds read error and read contents of memory on the system.

Affected software

Microsoft 365 Apps for Enterprise
Microsoft Office LTSC

How to mitigate CVE-2026-33822

Install updates from vendor's website.

External References

https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-33822

Related Security Bulletins