CVE-2026-20952: Microsoft Office Remote Code Execution Vulnerability
Microsoft Office Remote Code Execution Vulnerability
Other sources
Use after free 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 https://aka.ms/OfficeSecurityReleases - Upgrade
Upgrade to a fixed release to a version that resolves this vulnerability.
Fixed in 16.0.5535.1000Patch KB5002826 - Upgrade
Upgrade to a fixed release to a version that resolves this vulnerability.
Fixed in 16.105.26011018
Event History
Frequently Asked Questions
What is the severity of CVE-2026-20952?
CVE-2026-20952 is a critical remote code execution vulnerability in Microsoft Office.
How do I fix CVE-2026-20952?
To fix CVE-2026-20952, ensure that your Microsoft Office software is updated to the latest security patches.
Which products are affected by CVE-2026-20952?
CVE-2026-20952 affects multiple versions of Microsoft Office, including Office 2016, Office 2019, Office 2021, and Office LTSC.
Can CVE-2026-20952 allow an attacker to execute code?
Yes, CVE-2026-20952 allows an unauthorized attacker to execute arbitrary code locally on the affected system.
What type of vulnerability is CVE-2026-20952?
CVE-2026-20952 is classified as a use after free vulnerability.