🔥 This vulnerability is being actively exploited in the wild (CISA Known Exploited Vulnerabilities catalog)
CVE-2026-21514: Microsoft Office Word Reliance on Untrusted Inputs in a Security Decision Vulnerability
Summary
Microsoft Office Word has a vulnerability where it trusts user inputs when making security decisions, allowing an authorized attacker to gain elevated privileges (higher access level) on a local computer. This vulnerability is currently being exploited by attackers in real-world attacks.
Solution / Mitigation
Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable. Due date: 2026-03-03. See https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-21514 for specific vendor instructions.
Vulnerability Details
EPSS: 5.1%
🔥 Actively Exploited
Classification
Taxonomy References
Original source: https://nvd.nist.gov/vuln/detail/CVE-2026-21514
First tracked: February 12, 2026 at 02:20 PM
Classified by LLM (prompt v3) · confidence: 95%