Untrusted Pointer Dereference in Microsoft Office for macOS and Microsoft Office - CVE-2026-108435
Published: November 5, 2026
Vulnerability identifier: #VU159355
CSH Severity: Medium
CVSS v4: 6.7 [CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:A/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N]
CVE-ID: CVE-2026-108435
CWE-ID: CWE-822
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a remote attacker to disclose sensitive information from process memory.
The vulnerability exists due to an untrusted pointer dereference in Microsoft Office Word when processing untrusted input. A remote attacker can induce a user to process specially crafted input to potentially read portions of process memory.
The Preview Pane is not an attack vector for this vulnerability.
Affected software
Microsoft Office for macOS
Microsoft Office
Microsoft Office
How to mitigate CVE-2026-108435
Install security update from vendor's website.
Microsoft Office for macOS - update to 16.114 26101123
Microsoft Office - addressed in versions 16.0.14334.20974, 16.0.17932.21056
Microsoft Office - addressed in versions 16.0.14334.20974, 16.0.17932.21056