CVE-2026-45486: Microsoft Word Remote Code Execution Vulnerability
Microsoft Word Remote Code Execution Vulnerability
Other sources
Use after free in Microsoft Office Word allows an unauthorized attacker to execute code locally.
— Microsoft
Affected Software
Remediation
Recommended actions to resolve this vulnerability, in priority order.
- Upgrade
Upgrade to a fixed release to a version that resolves this vulnerability.
Fixed in 16.110.26061317
Event History
Frequently Asked Questions
What is the severity of CVE-2026-45486?
CVE-2026-45486 has a high severity rating of 7.8.
How do I fix CVE-2026-45486?
To fix CVE-2026-45486, ensure that Microsoft 365 Apps and all relevant Microsoft Office products are updated to the latest version.
What type of vulnerability is CVE-2026-45486?
CVE-2026-45486 is a remote code execution vulnerability caused by an untrusted pointer dereference.
What systems are affected by CVE-2026-45486?
CVE-2026-45486 affects Microsoft 365 Apps for Enterprise, Microsoft 365 Apps, and various Microsoft Office versions for Mac.
Can CVE-2026-45486 allow an attacker to gain control of my system?
Yes, CVE-2026-45486 can allow an unauthorized attacker to execute code locally, potentially gaining control of your system.