CVE-2022-24521

mediumpriority · act · 90OT risk · criticalKEV · exploitedEPSS 0.071 · 94 %ileexploit · PoCDEEURUUS

grimoire priorityP0 · Act now

Exploitable?

Yes · in the wild

CISA KEV · 1 exploit · PoC

Likely / severe?

7.13% (94th) EPSS

CVSS 4.6 · medium

Is it mine?

156 products

Check your exposure

Who says so?

5 sources

cnnvd · enisa_euvd · fstec_bdu · cert_bund

added 2022-04-13remediate by 2022-05-04

required action Apply updates per vendor instructions.

EPSS · scored 2026-10-27

Microsoft Windows CLFS Driver Privilege Escalation Vulnerability

Windows Common Log File System Driver Elevation of Privilege Vulnerability

remediations

Vendor fix, mitigation, or workaround guidance, as published by each source.

A vendor fix is available.

FixedWindows 10 Version 1607 for 32-bit Systemsmsrc_csaf
10.0.14393.5066:Security Update:https://support.microsoft.com/help/5012596
https://support.microsoft.com/help/5012596
FixedWindows 10 Version 1607 for x64-based Systemsmsrc_csaf
10.0.14393.5066:Security Update:https://support.microsoft.com/help/5012596
https://support.microsoft.com/help/5012596
FixedWindows 10 Version 1809 for 32-bit Systemsmsrc_csaf
10.0.17763.2803:Security Update:https://support.microsoft.com/help/5012647
https://support.microsoft.com/help/5012647
FixedWindows 10 Version 1809 for ARM64-based Systemsmsrc_csaf
10.0.17763.2803:Security Update:https://support.microsoft.com/help/5012647
https://support.microsoft.com/help/5012647
FixedWindows 10 Version 1809 for x64-based Systemsmsrc_csaf
10.0.17763.2803:Security Update:https://support.microsoft.com/help/5012647
https://support.microsoft.com/help/5012647
FixedWindows 10 Version 1909 for 32-bit Systemsmsrc_csaf
10.0.18363.2212:Security Update:https://support.microsoft.com/help/5012591
https://support.microsoft.com/help/5012591
FixedWindows 10 Version 1909 for ARM64-based Systemsmsrc_csaf
10.0.18363.2212:Security Update:https://support.microsoft.com/help/5012591
https://support.microsoft.com/help/5012591
FixedWindows 10 Version 1909 for x64-based Systemsmsrc_csaf
10.0.18363.2212:Security Update:https://support.microsoft.com/help/5012591
https://support.microsoft.com/help/5012591
FixedWindows 10 Version 20H2 for 32-bit Systemsmsrc_csaf
10.0.19042.1645:Security Update:https://support.microsoft.com/help/5012599
https://support.microsoft.com/help/5012599
FixedWindows 10 Version 20H2 for ARM64-based Systemsmsrc_csaf
10.0.19042.1645:Security Update:https://support.microsoft.com/help/5012599
https://support.microsoft.com/help/5012599
FixedWindows 10 Version 21H1 for 32-bit Systemsmsrc_csaf
10.0.19043.1645:Security Update:https://support.microsoft.com/help/5012599
https://support.microsoft.com/help/5012599
FixedWindows 10 Version 21H1 for ARM64-based Systemsmsrc_csaf
10.0.19043.1645:Security Update:https://support.microsoft.com/help/5012599
https://support.microsoft.com/help/5012599
FixedWindows 10 Version 21H1 for x64-based Systemsmsrc_csaf
10.0.19043.1645:Security Update:https://support.microsoft.com/help/5012599
https://support.microsoft.com/help/5012599
FixedWindows 10 Version 21H2 for 32-bit Systemsmsrc_csaf
10.0.19044.1645:Security Update:https://support.microsoft.com/help/5012599
https://support.microsoft.com/help/5012599
FixedWindows 10 Version 21H2 for ARM64-based Systemsmsrc_csaf
10.0.19044.1645:Security Update:https://support.microsoft.com/help/5012599
https://support.microsoft.com/help/5012599
FixedWindows 10 Version 21H2 for x64-based Systemsmsrc_csaf
10.0.19044.1645:Security Update:https://support.microsoft.com/help/5012599
https://support.microsoft.com/help/5012599
FixedWindows 10 for 32-bit Systemsmsrc_csaf
10.0.10240.19265:Security Update:https://support.microsoft.com/help/5012653
https://support.microsoft.com/help/5012653
FixedWindows 10 for x64-based Systemsmsrc_csaf
10.0.10240.19265:Security Update:https://support.microsoft.com/help/5012653
https://support.microsoft.com/help/5012653
FixedWindows 11 version 21H2 for ARM64-based Systemsmsrc_csaf
10.0.22000.613:Security Update:https://support.microsoft.com/help/5012592
https://support.microsoft.com/help/5012592
FixedWindows 11 version 21H2 for x64-based Systemsmsrc_csaf
10.0.22000.613:Security Update:https://support.microsoft.com/help/5012592
https://support.microsoft.com/help/5012592
FixedWindows 7 for 32-bit Systems Service Pack 1msrc_csaf
6.1.7601.25924:Monthly Rollup:https://support.microsoft.com/help/5012626
https://support.microsoft.com/help/5012626
FixedWindows 7 for x64-based Systems Service Pack 1msrc_csaf
6.1.7601.25924:Monthly Rollup:https://support.microsoft.com/help/5012626
https://support.microsoft.com/help/5012626
FixedWindows 8.1 for 32-bit systemsmsrc_csaf
6.3.9600.20337:Security Only:https://support.microsoft.com/help/5012639
https://support.microsoft.com/help/5012639
FixedWindows 8.1 for x64-based systemsmsrc_csaf
6.3.9600.20337:Security Only:https://support.microsoft.com/help/5012639
https://support.microsoft.com/help/5012639
FixedWindows RT 8.1msrc_csaf
6.3.9600.20337:Monthly Rollup:https://support.microsoft.com/help/5012639
https://support.microsoft.com/help/5012639
FixedWindows Server 2008 R2 for x64-based Systems Service Pack 1msrc_csaf
6.1.7601.25924:Monthly Rollup:https://support.microsoft.com/help/5012626
https://support.microsoft.com/help/5012626
FixedWindows Server 2008 R2 for x64-based Systems Service Pack 1 (Server Core installation)msrc_csaf
6.1.7601.25924:Monthly Rollup:https://support.microsoft.com/help/5012626
https://support.microsoft.com/help/5012626
FixedWindows Server 2008 for 32-bit Systems Service Pack 2msrc_csaf
6.0.6003.21446:Security Only:https://support.microsoft.com/help/5012632
https://support.microsoft.com/help/5012632
FixedWindows Server 2008 for 32-bit Systems Service Pack 2 (Server Core installation)msrc_csaf
6.0.6003.21446:Security Only:https://support.microsoft.com/help/5012632
https://support.microsoft.com/help/5012632
FixedWindows Server 2008 for x64-based Systems Service Pack 2msrc_csaf
6.0.6003.21446:Security Only:https://support.microsoft.com/help/5012632
https://support.microsoft.com/help/5012632
FixedWindows Server 2008 for x64-based Systems Service Pack 2 (Server Core installation)msrc_csaf
6.0.6003.21446:Security Only:https://support.microsoft.com/help/5012632
https://support.microsoft.com/help/5012632
FixedWindows Server 2012msrc_csaf
6.2.9200.23679:Monthly Rollup:https://support.microsoft.com/help/5012650
https://support.microsoft.com/help/5012650
FixedWindows Server 2012 (Server Core installation)msrc_csaf
6.2.9200.23679:Monthly Rollup:https://support.microsoft.com/help/5012650
https://support.microsoft.com/help/5012650
FixedWindows Server 2012 R2msrc_csaf
6.3.9600.20337:Security Only:https://support.microsoft.com/help/5012639
https://support.microsoft.com/help/5012639
FixedWindows Server 2012 R2 (Server Core installation)msrc_csaf
6.3.9600.20337:Security Only:https://support.microsoft.com/help/5012639
https://support.microsoft.com/help/5012639
FixedWindows Server 2016msrc_csaf
10.0.14393.5066:Security Update:https://support.microsoft.com/help/5012596
https://support.microsoft.com/help/5012596
FixedWindows Server 2016 (Server Core installation)msrc_csaf
10.0.14393.5066:Security Update:https://support.microsoft.com/help/5012596
https://support.microsoft.com/help/5012596
FixedWindows Server 2019msrc_csaf
10.0.17763.2803:Security Update:https://support.microsoft.com/help/5012647
https://support.microsoft.com/help/5012647
FixedWindows Server 2019 (Server Core installation)msrc_csaf
10.0.17763.2803:Security Update:https://support.microsoft.com/help/5012647
https://support.microsoft.com/help/5012647
FixedWindows Server 2022msrc_csaf
10.0.20348.643:Security Update:https://support.microsoft.com/help/5012604
https://support.microsoft.com/help/5012604
FixedWindows Server 2022 (Server Core installation)msrc_csaf
10.0.20348.643:Security Update:https://support.microsoft.com/help/5012604
https://support.microsoft.com/help/5012604
FixedWindows Server, version 20H2 (Server Core Installation)msrc_csaf
10.0.19042.1645:Security Update:https://support.microsoft.com/help/5012599
https://support.microsoft.com/help/5012599

cvss

Technical severity, 0–10. One row per scoring source.

7.8

010

base score 0–10 · higher = more severe · hover a vector to decode⚠ sources disagree · medium–high · 4.6–7.8

v2.04.6mediumAV:L/AC:L/Au:N/C:P/I:P/A:Pprimary · NVD / NIST USexploitability 3.9 · impact 6.4

v3.17.8highAV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:Hsecondary · FSTEC (BDU) RU

v3.17.8highCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H/E:F/RL:O/RC:Csecondary · ENISA EU

v3.17.8highCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:Hsecondary · secure@microsoft.com USexploitability 1.8 · impact 5.9

v3.17.8highCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H/E:Hsecondary · CVSS-BT (t0sche)

v3.17.8highCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H/E:F/RL:O/RC:Csecondary · Microsoft Security Response Center US

ssvc

A stakeholder decision — act, attend, or track — from exploitation and impact.

Exploitation: active · Automatable: no · Technical Impact: totalcoordinatorcisa_ssvcUS

weaknesses

The CWE weakness classes this flaw belongs to.

CWE-264USCWE-787US

ATT&CK techniques

ATT&CK techniques this enables or maps to.

exploits (1)

Public proof-of-concept and weaponised exploit code.

uname1able/CVE-2022-24521CVE-2022-24521 pocPoC · poc_in_github

affected products (156)

Products and version ranges known to be affected.

Xerox FreeFlow Print Serverall versionscert_bundDEcpe:/a:xerox:freeflow_print_server:v2
Xerox FreeFlow Print Server 9all versionscert_bundDEcpe:/a:xerox:freeflow_print_server:9
Microsoft Windows 10 Version 150710.0.10240.0 → 10.0.10240.19265enisa_euvdEU
Microsoft Windows 10 Version 160710.0.14393.0 → 10.0.14393.5066enisa_euvdEU
Microsoft Windows 10 Version 180910.0.0 → 10.0.17763.2803enisa_euvdEU
Microsoft Windows 10 Version 180910.0.17763.0 → 10.0.17763.2803enisa_euvdEU
Microsoft Windows 10 Version 190910.0.0 → 10.0.18363.2212enisa_euvdEU
Microsoft Windows 10 Version 20H210.0.0 → 10.0.19042.1645enisa_euvdEU
Microsoft Windows 10 Version 21H110.0.0 → 10.0.19043.1645enisa_euvdEU
Microsoft Windows 10 Version 21H210.0.19043.0 → 10.0.19044.1645enisa_euvdEU
Microsoft Windows 11 version 21H210.0.0 → 10.0.22000.613enisa_euvdEU
Microsoft Windows 76.1.0 → 6.1.7601.25924enisa_euvdEU
Microsoft Windows 7 Service Pack 16.1.0 → 6.1.7601.25924enisa_euvdEU
Microsoft Windows 8.16.3.0 → 6.3.9600.20337enisa_euvdEU
Microsoft Windows Server 2008 R2 Service Pack 16.1.7601.0 → 6.1.7601.25924enisa_euvdEU
Microsoft Windows Server 2008 R2 Service Pack 1 (Server Core installation)6.1.7601.0 → 6.1.7601.25924enisa_euvdEU
Microsoft Windows Server 2008 Service Pack 26.0.6003.0 → 6.0.6003.21446enisa_euvdEU
Microsoft Windows Server 2008 Service Pack 2 (Server Core installation)6.0.6003.0 → 6.0.6003.21446enisa_euvdEU
Microsoft Windows Server 20126.2.9200.0 → 6.2.9200.23679enisa_euvdEU
Microsoft Windows Server 2012 (Server Core installation)6.2.9200.0 → 6.2.9200.23679enisa_euvdEU

showing 20 of 156

advisories (2)

Vendor and ecosystem advisories describing this.

WID-SEC-W-2023-0838Xerox FreeFlow Print Server: Mehrere SchwachstellenDeutsch2022-05-11csaf · cert_bundDE
Ein entfernter, authentisierter Angreifer kann mehrere Schwachstellen in Xerox FreeFlow Print Server ausnutzen, um beliebigen Programmcode auszuführen, einen Cross-Site-Scripting-Angriff durchzuführen, Informationen offenzulegen, einen Denial-of-Service-Zustand zu verursachen oder Dateien zu manipulieren.
msrc_CVE-2022-24521Windows Common Log File System Driver Elevation of Privilege Vulnerability2022-04-12csaf · msrc_csafUS
To determine the support lifecycle for your software, see the Microsoft Support Lifecycle: https://support.microsoft.com/lifecycle

also known as (4)

Other names and identifiers for this entity.

sources

Which sources assert this record, and when.

cnnvd enisa_euvd fstec_bdu cert_bund msrc_csaf NVD CVE.org MITRE

published 2022-04-15modified 2026-06-17

references (7)

External citations — patches, advisories, analysis.

scry

Attackers weaponise vulnerabilities like this against internet-exposed services. See what is exposed on your perimeter with a free passive scan.

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