Use-after-free in Microsoft Office for macOS and Microsoft Office - CVE-2026-112735
Published: November 11, 2026
Vulnerability identifier: #VU164829
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-2026-112735
CWE-ID: CWE-416
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a remote attacker to execute arbitrary code with the victim user's permissions.
The vulnerability exists due to use-after-free in Microsoft Office Word when processing a specially crafted document as a Word template. A remote attacker can convince a user to load and unload the document as a Word template, then select an affected item from the Quick Parts gallery to execute arbitrary code.
The Preview Pane is not an exploitation vector for this vulnerability.
Affected software
Microsoft Office for macOS
Microsoft Office
Microsoft Office
How to mitigate CVE-2026-112735
Install security update from vendor's website.
Microsoft Office for macOS - update to 16.115.26110837
Microsoft Office - addressed in versions 16.0.14334.21048, 16.0.17932.21140
Microsoft Office - addressed in versions 16.0.14334.21048, 16.0.17932.21140