CVE-2026-122198: Microsoft Office Remote Code Execution Vulnerability
Heap-based buffer overflow in Microsoft Office allows an unauthorized attacker to execute code over a network.
Other sources
Microsoft Office 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 16.0.14334.21048 - Upgrade
Upgrade to a fixed release to a version that resolves this vulnerability.
Fixed in 16.0.17932.21140
Event History
Frequently Asked Questions
Which systems are identified as affected?
The affected software listed is Microsoft Office LTSC 2021 and Microsoft Office LTSC 2024. Systems running either listed product should be assessed.
Does exploitation require attacker credentials or user interaction?
The vector indicates network-based exploitation with low attack complexity and no privileges required. However, user interaction is required.
Are configuration workarounds or default-configuration details available?
The provided data does not specify whether default configurations are affected or identify any configuration-based mitigations or workarounds.