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CVE-2022-24521

Exploited in the wild. In CISA KEV since 2022‑04‑13. Fixed versions are out.

CVSS 3.17.8HighEPSS percentile94th7.1% chance in 30 daysCISA KEVListedsince 2022-04-13, due 2022-05-04
No public exploit knownFix5 products6 fixed builds listed below

Published Updated Sources: CVE.org, NVD, BDU

NVD CVE.org

What to do

Find your product and version, then upgrade to the build on the right.

  • Microsoft Windows 10 Version 1809Affected: ≥ 10.0.17763.0, < 10.0.17763.2803Upgrade to: 10.0.17763.2803Affected: ≥ 10.0.0, < 10.0.18363.2212Upgrade to: 10.0.18363.2212Affected: ≥ 10.0.0, < 10.0.19043.1645Upgrade to: 10.0.19043.1645Affected: ≥ 10.0.0, < 10.0.19042.1645Upgrade to: 10.0.19042.1645 + 3 more branchesStated by: CVE record
  • Microsoft Windows Server 2019Affected: ≥ 10.0.17763.0, < 10.0.17763.2803Upgrade to: 10.0.17763.2803Stated by: CVE record
  • Microsoft Windows Server 2022Affected: ≥ 10.0.20348.0, < 10.0.20348.643Upgrade to: 10.0.20348.643Stated by: CVE record
  • Microsoft Windows Server version 20H2Affected: ≥ 10.0.0, < 10.0.19042.1645Upgrade to: 10.0.19042.1645Stated by: CVE record
  • Microsoft Windows 11 version 21H2Affected: ≥ 10.0.0, < 10.0.22000.613Upgrade to: 10.0.22000.613Stated by: CVE record

Versions as the sources state them. 7 more products have version data. Full version matrix after sign-in

Check it yourselfA free OpenVAS check exists for this CVE. Run it against your hosts.Is your organisation exposed?Request an assessment to establish which checks fit your systems.

Coverage timeline

0 publishers

  1. Added to CISA KEV catalog

    ·CISA KEV

Sourced from public security reporting — each date is when it was published, not when it happened.

What it is

From the CVE record

Windows Common Log File System Driver Elevation of Privilege Vulnerability

In plain language

No plain-language summary for this CVE yet.

Exploitation

Where each signal puts this CVE on the scale from published to confirmed exploited.

EPSS94th
CISA KEV
CISA KEV

Listed as exploited in the wild since 2022-04-13.

US federal agencies must remediate by 2022-05-04.

Known use in ransomware campaigns.

Apply updates per vendor instructions.
Public exploits

No public exploit or proof of concept found in the sources we track.

EPSS

7.1% chance of exploitation activity in the next 30 days, which ranks it in the 94th percentile of scored CVEs.

Exploit Prediction Scoring System, FIRST.org. A probability, not a confirmation.

Lifecycle

7 events over 1534 days, from the signal feeds we watch.

  1. OpenVAS check added
  2. Patch availablerecord updated
  3. Publishedweakness classified, att&ck mapped
  4. Added to CISA KEVransomware campaign

Affected products

And 60 more affected products. See all after sign-in

Technical detail

CVSS 3.1 vector

Open in the CVSS calculator

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Scored 7.8 by NVD.

How it is reached

  • Attack Vector LocalRequires local access to the vulnerable system (e.g. local login, malicious file)
  • Attack Complexity LowNo special conditions — the attack can be reliably reproduced
  • Privileges Required LowRequires basic user-level privileges
  • User Interaction NoneNo user interaction needed — fully automated exploitation

Scope

  • Scope UnchangedImpact is limited to the vulnerable component itself

Impact if exploited

  • Confidentiality HighTotal information disclosure — all data in the component is compromised
  • Integrity HighTotal loss of integrity — attacker can modify any data in the component
  • Availability HighTotal denial of service — the component is completely unavailable

Weaknesses

ATT&CK techniques

Mapped from the weaknesses above (CWE to ATT&CK), not observed in attacks.

Sources

References in the record

And 1 more reference. See all after sign-in

Watch the software you run.

My Stack ranks new CVEs for your products by real-world exploitation, so the next exploited one reaches you without reading every advisory.

We'll flag the next CVE, public exploit or patch for Windows 7 Service Pack 1, not every advisory. This one: actively exploited.