CVE-2026-102855: Microsoft Office Visio Remote Code Execution Vulnerability
Heap-based buffer overflow in Microsoft Office Visio allows an unauthorized attacker to execute code over a network.
Other sources
Microsoft Office Visio 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 16.0.17932.21056 - Upgrade
Upgrade to a fixed release to a version that resolves this vulnerability.
Fixed in 16.0.14334.20974 - Upgrade
Upgrade to a fixed release to a version that resolves this vulnerability.
Fixed in https://aka.ms/OfficeSecurityReleases
Event History
Frequently Asked Questions
What must an attacker do to exploit this issue?
The attacker must induce user interaction. The CVSS vector indicates the attack can be delivered over the network with low attack complexity and requires no attacker privileges.
Which deployments should be prioritized for review?
Review systems running Microsoft 365 Apps for Enterprise or Microsoft Office LTSC 2021 or 2024, including both 32-bit and 64-bit LTSC editions. The listed affected software is limited to these Microsoft Office/Visio product families.
What is the potential impact if exploitation succeeds?
Successful exploitation can allow execution of attacker-controlled code. The severity vector rates confidentiality, integrity, and availability impact as high.