Untrusted Pointer Dereference in Microsoft products - CVE-2026-45471
Published: June 10, 2026
Vulnerability identifier: #VU134213
CSH Severity: High
CVSS v4: 8.4 [CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:A/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N]
CVE-ID: CVE-2026-45471
CWE-ID: CWE-822
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a remote attacker to execute arbitrary code on the target system.
The vulnerability exists due to untrusted pointer dereference in Microsoft Word. A remote attacker can trick a victim to open a specially crafted Office file and execute arbitrary code on the system.
Affected software
Microsoft SharePoint Server Subscription Edition
Microsoft SharePoint Enterprise Server
Microsoft SharePoint Server
Microsoft 365 Apps for Enterprise
Microsoft Office
Microsoft Word
Microsoft Office LTSC
Microsoft SharePoint Enterprise Server
Microsoft SharePoint Server
Microsoft 365 Apps for Enterprise
Microsoft Office
Microsoft Word
Microsoft Office LTSC
How to mitigate CVE-2026-45471
Install updates from vendor's website.