CVE-2026-55038: Microsoft Word Remote Code Execution Vulnerability
Microsoft Word Remote Code Execution Vulnerability
Other sources
Stack-based buffer overflow 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 https://aka.ms/OfficeSecurityReleases - Upgrade
Upgrade to a fixed release to a version that resolves this vulnerability.
Fixed in 16.0.5561.1000Patch KB5002890 - Upgrade
Upgrade to a fixed release to a version that resolves this vulnerability.
Fixed in 16.0.19725.20434Patch KB5002882 - Upgrade
Upgrade to a fixed release to a version that resolves this vulnerability.
Fixed in 16.111.26071215 - Upgrade
Upgrade to a fixed release to a version that resolves this vulnerability.
Fixed in 16.0.5561.1001Patch KB5002892 - Upgrade
Upgrade to a fixed release to a version that resolves this vulnerability.
Fixed in 16.0.10417.20175Patch KB5002885
Event History
Frequently Asked Questions
What is the severity of CVE-2026-55038?
CVE-2026-55038 has a high severity rating of 7.8.
What software is affected by CVE-2026-55038?
CVE-2026-55038 affects Microsoft Word 2016, Microsoft Office 2019, Microsoft Office 2021, Microsoft Office 2024, and Microsoft 365 Apps for Enterprise among others.
How do I fix CVE-2026-55038?
To fix CVE-2026-55038, ensure that you apply the latest security updates from Microsoft for the affected software.
What type of vulnerability is CVE-2026-55038?
CVE-2026-55038 is a stack-based buffer overflow vulnerability in Microsoft Word.
What impact does CVE-2026-55038 have?
CVE-2026-55038 allows an unauthorized attacker to execute code locally on vulnerable systems.