CVE-2026-21514
Published Feb 10, 2026
Last updated 3 months ago
- Description
- Reliance on untrusted inputs in a security decision in Microsoft Office Word allows an unauthorized attacker to bypass a security feature locally.
- Source
- secure@microsoft.com
- NVD status
- Analyzed
- Products
- 365_apps, office_long_term_servicing_channel
CVSS 3.1
- Type
- Secondary
- Base score
- 7.8
- Impact score
- 5.9
- Exploitability score
- 1.8
- Vector string
- CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
- Severity
- HIGH
Data from CISA
- Vulnerability name
- Microsoft Office Word Reliance on Untrusted Inputs in a Security Decision Vulnerability
- Exploit added on
- Feb 10, 2026
- Exploit action due
- Mar 3, 2026
- Required action
- Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.
- secure@microsoft.com
- CWE-807
- Hype score
- Not currently trending
🚨 CVE-2026-21514: Microsoft Office zero-day actively exploited in the wild — LNK files weaponized to hijack systems. Kaspersky confirms live in-the-wild attacks. Every unpatched Office user is a target RIGHT NOW. https://t.co/qZ9FQAGF9K #CyberSecurity
@lyrie_ai
17 May 2026
43 Impressions
0 Retweets
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0 Bookmarks
0 Replies
0 Quotes
Top 5 Trending CVEs: 1 - CVE-2026-20841 2 - CVE-2026-23760 3 - CVE-2026-21508 4 - CVE-2024-27834 5 - CVE-2026-21514 #cve #cvetrends #cveshield #cybersecurity https://t.co/4Fua3CAN6W
@CVEShield
12 Feb 2026
117 Impressions
0 Retweets
2 Likes
0 Bookmarks
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