CVE-2026-63515: Microsoft Office Remote Code Execution Vulnerability
Microsoft Office Remote Code Execution Vulnerability
Other sources
Out-of-bounds read in Microsoft Office 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 16.0.5565.1001Patch KB5002902 - 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-2026-63515?
CVE-2026-63515 has a severity rating of high, with a base score of 7.8.
What type of vulnerability is CVE-2026-63515?
CVE-2026-63515 is a Microsoft Office Remote Code Execution Vulnerability that involves an out-of-bounds read.
Who is affected by CVE-2026-63515?
CVE-2026-63515 affects users of various Microsoft Office products, including Microsoft Office 2016 and Microsoft 365 Apps for Enterprise.
What are the potential consequences of CVE-2026-63515?
Exploitation of CVE-2026-63515 could allow an unauthorized attacker to execute code locally on the affected systems.
How do I fix CVE-2026-63515?
To mitigate CVE-2026-63515, ensure that you apply the latest security patches provided by Microsoft for your Office software.