CVE-2026-21514
Microsoft Word Security Feature Bypass Vulnerability
- Published
- Feb 10, 2026
- Updated
- Aug 19, 2026
- Assigning CNA
- microsoft
- Evidence observed
- Feb 10, 2026
Primary CVSS
nvd · CVSS 3.1
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:HLow · next 30 days
- Percentile
- 73.4%
- Model date
- Sep 21, 2026
EPSS is a statistical estimate, not a certainty or a measure of impact. Combine it with CVSS, KEV status, exposure and your environment.
CISA Known Exploited
This CVE appears in the CISA Known Exploited Vulnerabilities catalog.
Summary
Reliance on untrusted inputs in a security decision in Microsoft Office Word allows an unauthorized attacker to bypass a security feature locally.
Sources
1Builders and research notes for exploiting CVE-2026-21514 (Protected View bypass) and CVE-2026-21510 (RCE) in MS Office, including obfuscation and alternative payload vectors.
Responsible use
Use vulnerability information only on systems you own or are authorized to test. Kitploit links to public research metadata and does not store exploit code or malicious payloads.