Summary
| Parameter | Value |
|---|---|
| CVE ID | CVE-2026-21514 |
| Alert Source | CISA KEV - Active Exploitation |
| CVE Publication Year | 2026 |
| Date Published | 2026-02-10 |
| Vendor | Microsoft |
| Product | Office |
| CVSS Score | 7.8 (high) |
| EPSS Score | No data |
| CISA KEV | Yes - confirmed active exploitation |
| Ransomware | Not confirmed |
| Remediation Deadline | 2026-03-03 |
Vulnerability Description
Microsoft Office Word contains a reliance on untrusted inputs in a security decision vulnerability that could allow an authorized attacker to elevate privileges locally.
Required Actions
Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.
Who Is Affected?
This vulnerability affects Office by Microsoft. Check if your organization uses this software and requires updates.
Sources
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