CVE-2026-45472: 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 16.110.26061317 - Upgrade
Upgrade to a fixed release to a version that resolves this vulnerability.
Fixed in 16.0.5556.1005Patch KB5002878 - 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 16.0.20131.20024
Event History
Frequently Asked Questions
What is the severity of CVE-2026-45472?
CVE-2026-45472 has a severity score of 8.4, categorized as high.
What impact does CVE-2026-45472 have?
CVE-2026-45472 allows unauthorized attackers to execute code locally through a heap-based buffer overflow.
Which versions of Microsoft Office are affected by CVE-2026-45472?
CVE-2026-45472 affects Microsoft Office 2016, 2019, 2021, 2024, Microsoft 365 Apps for Enterprise, Microsoft 365 Apps, Microsoft Office 365 for Mac, and Microsoft Office for Android.
How do I fix CVE-2026-45472?
To fix CVE-2026-45472, users should apply the latest security updates released by Microsoft for their affected Office version.
What kind of vulnerability is CVE-2026-45472 classified as?
CVE-2026-45472 is classified as a heap-based buffer overflow and is also related to use after free vulnerabilities.