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Page generated: 11 Nov 2026, 06:12 UTC

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CVE-2022-24521

Windows Common Log File System Driver Elevation of Privilege Vulnerability

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: 7.13%: +0.04

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

Sources: 12 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

SECURITY.COM

Press · 20 Mar 2025, 10:09 · RansomHub: Attackers Leverage New Custom Backdoor - SECURITY.COM

Securelist

Press · 21 Dec 2023, 08:00 · Windows CLFS and five exploits used by ransomware operators (Exploit #1 – CVE-2022-24521) - Securelist

Securelist

Press · 21 Dec 2023, 08:00 · Windows CLFS and five exploits used by ransomware operators (Exploit #2 – September 2022) - Securelist

The Hacker News

Press · 12 Apr 2023, 07:00 · Urgent: Microsoft Issues Patches for 97 Flaws, Including Active Ransomware Exploit - The Hacker News

SecurityWeek

Press · 29 Mar 2023, 07:00 · Most Weaponized Vulnerabilities of 2022 and 5 Key Risks: Report - SecurityWeek

See all 12 source documents

The Record from Recorded Future News

Press · 30 Nov 2022, 08:00 · CISA: Cuba ransomware group has stolen $60 million from at least 100 organizations - The Record from Recorded Future News

Zscaler

Press · 28 Oct 2022, 07:00 · Technical Analysis of Windows CLFS Zero-Day Vulnerability CVE-2022-37969 - Part 2: Exploit Analysis - Zscaler

Kaspersky

Press · 24 Aug 2022, 07:00 · RedAlert and Monster: multiplatform ransomware gains steam - Kaspersky

Forbes

Press · 19 Apr 2022, 07:00 · Microsoft April 2022 Update Patches Two Zero-Day Flaws, 117 Hacks - Forbes

Hamilton College

Press · 15 Apr 2022, 07:00 · Information Security - Apply patch for Microsoft Critical Vulnerabilities - Hamilton College

BleepingComputer

Press · 13 Apr 2022, 07:00 · CISA warns orgs to patch actively exploited Windows LPE bug - BleepingComputer

Sophos

Press · 12 Apr 2022, 07:00 · RPC Vulnerability Stands Out in a Field of 128 in April - Sophos

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 15:13). The curve appears once the score changes.

Public exploit evidence

Public exploit entries / repo candidates

See 1 repos with metrics

Repository	Stars	Forks	Language	Updated
uname1able/CVE-2022-24521	0	0	C++	20 Feb 2026, 03:37

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 7.1%
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 13:58:36.128549+00:00 · EPSS snapshot: 2026-11-05T12:03:04Z

Source event timeline

First press mention

12 Apr 2022, 07:00

Added to the CISA KEV catalog

13 Apr 2022, 00:00

Published

15 Apr 2022, 19:03

Latest press mention

20 Mar 2025, 10:09

Score calculated

05 Nov 2026, 13:58

PoCs on GitHub

1 repositories