Page generated: 11 Nov 2026, 08:10 UTC
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CVE-2025-62221

Use after free in Windows Cloud Files Mini Filter Driver allows an authorized attacker to elevate privileges 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: 2.50%: +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: 24 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

The Hacker News
Press · 18 May 2026, 07:00 · MiniPlasma Windows 0-Day Enables SYSTEM Privilege Escalation on Fully Patched Systems - The Hacker News
Recorded Future
Press · 13 Jan 2026, 08:00 · December 2025 CVE Landscape: 22 Critical Vulnerabilities Mark 120% Surge, React2Shell Dominates Threat Activity - Recorded Future
CyberSecurityNews
Press · 12 Dec 2025, 08:00 · Top 20 Most Exploited Vulnerabilities of 2025: A Comprehensive Analysis - CyberSecurityNews
Computerworld
Press · 12 Dec 2025, 08:00 · Ho ho ho! December’s Patch Tuesday delivers three zero-days - Computerworld
Techlicious
Press · 11 Dec 2025, 08:00 · Microsoft Security Update Patches Flaw Hackers Are Already Exploiting - Techlicious
See all 24 source documents
Cyber Daily
Press · 11 Dec 2025, 08:00 · Alert! Hackers targeting Windows and WinRAR vulnerabilities - Cyber Daily
HotHardware
Press · 11 Dec 2025, 08:00 · Your Stolen WinRAR Copy Is Being Actively Exploited In The Wild, Patch ASAP - HotHardware
SOC Prime
Press · 11 Dec 2025, 08:00 · CVE-2025-62221 and CVE-2025-54100: Windows Elevation of Privilege and RCE Zero-Day Vulnerabilities Patched - SOC Prime
Sophos
Press · 11 Dec 2025, 08:00 · A big finish to 2025 in December’s Patch Tuesday - Sophos
Lifehacker
Press · 11 Dec 2025, 08:00 · Microsoft's Latest 'Patch Tuesday' Update Fixes These Three Zero-Days - Lifehacker
Qualys
Press · 10 Dec 2025, 08:00 · Microsoft and Adobe Patch Tuesday, December 2025 Security Update Review - Qualys
Rapid7
Press · 10 Dec 2025, 08:00 · Patch Tuesday - December 2025 - Rapid7
Petri IT Knowledgebase
Press · 10 Dec 2025, 08:00 · Microsoft Releases December 2025 Patch Tuesday Updates with 56 Security Fixes - Petri IT Knowledgebase
CyberSecurityNews
Press · 10 Dec 2025, 08:00 · Windows Cloud Files Mini Filter Driver 0-Day Vulnerability Exploited in the Wild to Escalate Privileges - CyberSecurityNews
The Hacker News
Press · 10 Dec 2025, 08:00 · Microsoft Issues Security Fixes for 56 Flaws, Including Active Exploit and Two Zero-Days - The Hacker News
SecurityBrief Australia
Press · 10 Dec 2025, 08:00 · Microsoft patches Windows zero-day & risky Office flaws - SecurityBrief Australia
Krebs on Security
Press · 09 Dec 2025, 08:00 · Microsoft Patch Tuesday, December 2025 Edition - Krebs on Security
CyberScoop
Press · 09 Dec 2025, 08:00 · Microsoft’s last Patch Tuesday of 2025 addresses 57 defects, including one zero-day - CyberScoop
Arctic Wolf
Press · 09 Dec 2025, 08:00 · Microsoft Patch Tuesday: December 2025 - Arctic Wolf
Dark Reading
Press · 09 Dec 2025, 08:00 · Microsoft Fixes Exploited Zero Day in Light Patch Tuesday - Dark Reading
Cisco Talos Blog
Press · 09 Dec 2025, 08:00 · Microsoft Patch Tuesday for December 2025 — Snort rules and prominent vulnerabilities - Cisco Talos Blog
BleepingComputer
Press · 09 Dec 2025, 08:00 · Microsoft December 2025 Patch Tuesday fixes 3 zero-days, 57 flaws - BleepingComputer
CyberSecurityNews
Press · 09 Dec 2025, 08:00 · Microsoft December 2025 Patch Tuesday – 56 Vulnerabilities Fixed Including 3 Zero-days - CyberSecurityNews
thezdi.com
Press · 09 Dec 2025, 08:00 · The December 2025 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 2.5%
Attention, last 30 days
0 distinct story titles; 0 press documents; 0 publisher domains.
Technical potential
local access, low privileges, no user interaction.
Observed activity
Exploitation recorded in CISA KEV.
Known scale
Not quantified.
Evidence confidence basis
Trusted exploitation confirmation

Score evaluated: 2026-11-05 13:59:43.394995+00:00 · EPSS snapshot: 2026-11-05T12:03:04Z

Source event timeline
Added to the CISA KEV catalog
09 Dec 2025, 00:00
First press mention
09 Dec 2025, 08:00
Published
09 Dec 2025, 17:56
Latest press mention
18 May 2026, 07:00
Score calculated
05 Nov 2026, 13:59