CVE-2026-21514HIGH 7.8CISA KEVEPSS p74.6%

CVE-2026-21514Microsoft Office Word Reliance on Untrusted Inputs in a Security Decision Vulnerability

Microsoft / Office

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.

Scoring

CVSS 3.17.8 (HIGH)
VectorCVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
EPSS1.58% probability of exploitation · percentile 74.6% · 2026-10-05T12:00:23Z
Published2026-02-10
Last modified2026-02-11

CISA KEV entry

Added to KEV: 2026-02-10

Underlying weaknesses· 1

CWE-807

References

  1. https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-21514
  2. https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2026-21514

1

TypeTargetConfidenceTier
WeaknessReliance on Untrusted Inputs in a Security Decisioncwe-8070%live

(incoming)1

TypeTargetConfidenceTier
KEVEntryMicrosoft Office Word Reliance on Untrusted Inputs in a Security Decision Vulnerabilitykev-cve-2026-215140%live

Related by meaning· 6

Nearest entities by semantic similarity across the cs-graph corpus.

CVE
Microsoft Office Security Feature Bypass Vulnerability
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CVE-2026-45486
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CVE-2026-45457
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CVE-2026-33114
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CVE-2026-45643
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CVE-2026-45471
Sourced from NVD + CISA KEV + FIRST.org EPSS. Curated for EU compliance use cases by Adam Lundqvist, Founder at SQUR.