CVE-2026-58651: Microsoft Word Remote Code Execution Vulnerability
Heap-based buffer overflow in Microsoft Office Word allows an unauthorized attacker to execute code locally.
Other sources
Microsoft Word Remote Code Execution Vulnerability
— 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 https://aka.ms/OfficeSecurityReleases - Upgrade
Upgrade to a fixed release to a version that resolves this vulnerability.
Fixed in 16.112.26081010
Event History
Frequently Asked Questions
What is the severity of CVE-2026-58651?
CVE-2026-58651 has a high severity rating of 7.8.
How do I fix CVE-2026-58651?
To fix CVE-2026-58651, ensure that you have installed the latest updates for Microsoft Word and other affected Microsoft Office applications.
What are the potential impacts of CVE-2026-58651?
CVE-2026-58651 could allow an unauthorized attacker to execute arbitrary code locally on an affected system.
Which software is affected by CVE-2026-58651?
CVE-2026-58651 affects various versions of Microsoft 365 Apps for Enterprise, Microsoft Office LTSC 2024, and Microsoft Office LTSC for Mac.
What type of vulnerability is CVE-2026-58651?
CVE-2026-58651 is classified as a heap-based buffer overflow vulnerability.