Page generated: 11 Nov 2026, 08:38 UTC
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CVE-2026-21514

Reliance on untrusted inputs in a security decision in Microsoft Office Word allows an unauthorized attacker to bypass a security feature locally.

CVSS 7.8 (HIGH) KEV: KNOWN CATALOG

Attention and evidence

HYPE SCORE
0.0/10
REALITY · THREAT PRIORITY
8.2/10
General review priority; not probability

Evidence confidence: Exploitation recorded

Why this priority?
  • Recorded exploitation baseline: +7.00
  • Technical severity: CVSS 7.8: +1.17
  • Fresh EPSS: 1.59%: +0.01

General review priority, not probability, victim count or asset-specific risk. A range covers missing CVSS/EPSS inputs within the current evidence state.

Sources: 20 documents and public datasets.

Hype components

Headline sample (25%)
0/100
Press, 30 days (60%)
0/100
Grounded branding (15%)
0/100
HYPE TOTAL0/100

Sources and documents

Recorded Future
Press · 12 Mar 2026, 07:00 · February 2026 CVE Landscape: 13 Critical Vulnerabilities Mark 43% Drop from January - Recorded Future
SecurityBrief Australia
Press · 12 Feb 2026, 08:00 · Microsoft patches zero-day flaws in latest Windows update - SecurityBrief Australia
Help Net Security
Press · 11 Feb 2026, 08:00 · Microsoft Patch Tuesday: 6 exploited zero-days fixed in February 2026 - Help Net Security
CyberSecurityNews
Press · 11 Feb 2026, 08:00 · Microsoft Office Word 0-day Vulnerability Actively Exploited in the Wild - CyberSecurityNews
CyberSecurityNews
Press · 11 Feb 2026, 08:00 · CISA Adds Six Microsoft 0-Day Vulnerabilities to KEV Catalog Following Active Exploitation - CyberSecurityNews
See all 20 source documents
Rapid7
Press · 11 Feb 2026, 08:00 · Patch Tuesday - February 2026 - Rapid7
The Hacker News
Press · 11 Feb 2026, 08:00 · Microsoft Patches 59 Vulnerabilities Including Six Actively Exploited Zero-Days - The Hacker News
Infosecurity Magazine
Press · 11 Feb 2026, 08:00 · Microsoft Fixes Six Zero Day Vulnerability in February Patch Tuesday - Infosecurity Magazine
Cyber Press
Press · 11 Feb 2026, 08:00 · Microsoft Releases Extended Security Updates for Windows 10 Users - Cyber Press
Malwarebytes
Press · 11 Feb 2026, 08:00 · February 2026 Patch Tuesday includes six actively exploited zero-days - Malwarebytes
Forbes
Press · 11 Feb 2026, 08:00 · Microsoft Triple Warning — 3 Windows Security Bypass Threats Confirmed - Forbes
Qualys
Press · 11 Feb 2026, 08:00 · Microsoft and Adobe Patch Tuesday, February 2026 Security Update Review - Qualys
BleepingComputer
Press · 10 Feb 2026, 08:00 · Microsoft February 2026 Patch Tuesday fixes 6 zero-days, 58 flaws - BleepingComputer
CyberSecurityNews
Press · 10 Feb 2026, 08:00 · Microsoft Patch Tuesday February 2026 – 54 Vulnerabilities Fixed, Including 6 Zero-days - CyberSecurityNews
Krebs on Security
Press · 10 Feb 2026, 08:00 · Patch Tuesday, February 2026 Edition - Krebs on Security
Cisco Talos Blog
Press · 10 Feb 2026, 08:00 · Microsoft Patch Tuesday for February 2026 — Snort rules and prominent vulnerabilities - Cisco Talos Blog
Dark Reading
Press · 10 Feb 2026, 08:00 · Microsoft Patches 6 Actively Exploited Zero-Days - Dark Reading
SecurityWeek
Press · 10 Feb 2026, 08:00 · 6 Actively Exploited Zero-Days Patched by Microsoft With February 2026 Updates - SecurityWeek
Arctic Wolf
Press · 10 Feb 2026, 08:00 · Microsoft Patch Tuesday: February 2026 - Arctic Wolf
thezdi.com
Press · 10 Feb 2026, 08:00 · The February 2026 Security Update Review - thezdi.com

Score evolution

● Hype   ● Reality

Earlier evidence-support scores are retained in history; this chart shows only the current priority definition.

First record: hype 0.0 · reality 8.2 (2026-11-02 15:14). The curve appears once the score changes.

Public exploit evidence

0

Public exploit entries / repo candidates

Evidence context and dated references

Reality is general threat/review priority, combining observed exploitation, CVSS severity and fresh EPSS. Evidence confidence is separate. This is not calibrated risk, a victim count or an asset-specific assessment. A range reflects missing numeric inputs.

Evidence in context

Confidence in exploitation evidence
Exploitation recorded
Priority basis
Recorded exploitation; CVSS 7.8; EPSS 1.6%
Attention, last 30 days
0 distinct story titles; 0 press documents; 0 publisher domains.
Technical potential
local access, no prior privileges, user interaction.
Observed activity
Exploitation recorded in CISA KEV.
Known scale
Not quantified.
Evidence confidence basis
Trusted exploitation confirmation

Score evaluated: 2026-11-05 14:00:01.230559+00:00 · EPSS snapshot: 2026-11-05T12:03:04Z

Source event timeline
Added to the CISA KEV catalog
10 Feb 2026, 00:00
First press mention
10 Feb 2026, 08:00
Published
10 Feb 2026, 17:51
Latest press mention
12 Mar 2026, 07:00
Score calculated
05 Nov 2026, 14:00