CVE-2022-24482

Local privilege escalation through ALPC race condition

Published Apr 15, 2022 · Updated Jan 2, 2025

A race condition in Windows ALPC allows local users with low privileges to elevate privileges on affected Windows 10, 11, and Server builds. The published records identify improper synchronization in ALPC but do not name the shared object or unsynchronized operation. Exploitation requires local access, existing low privileges, and a difficult-to-win race; success grants elevated control over the affected system.

CVSS severity7.0
High
EPSS probability0.33%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

A race condition in Windows ALPC allows local users with low privileges to elevate privileges on affected Windows 10, 11, and Server builds. The published records identify improper synchronization in ALPC but do not name the shared object or unsynchronized operation. Exploitation requires local access, existing low privileges, and a difficult-to-win race; success grants elevated control over the affected system.

The record

CVE
CVE-2022-24482
Published
Apr 15, 2022
Updated
Jan 2, 2025
Vendor
Microsoft
Product
Windows 10 Version 1507
Classifications
CWE-362, T1068
Attack vector
local
Privileges
authenticated

Timeline

How it unfolded

  1. Apr 15, 2022CVE publishedPublication date reported by the CVE source.
  2. Jan 2, 2025Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

Compare your product and version with the public record. A matching version still requires validation against your environment.

Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=10.0.10240.0 <10.0.10240.19265

What conditions does exploitation require?

Attack vectorlocal
Required privilegesauthenticated

What is affected?

Microsoft · Windows 10 Version 1507version=10.0.10240.0 <10.0.10240.19265
Microsoft · Windows Server 2019version=10.0.17763.0 <10.0.17763.2803
Microsoft · Windows 10 Version 21H1version=10.0.0 <10.0.19043.1645
Microsoft · Windows 10 Version 1909version=10.0.0 <10.0.18363.2212
Microsoft · Windows Server 2016 (Server Core installation)version=10.0.14393.0 <10.0.14393.5066
Microsoft · Windows 11 version 21H2version=10.0.0 <10.0.22000.613
Microsoft · Windows 10 Version 21H2version=10.0.19043.0 <10.0.19044.1645
Microsoft · Windows Server 2016version=10.0.14393.0 <10.0.14393.5066
Microsoft · Windows 10 Version 20H2version=10.0.0 <10.0.19042.1645
Microsoft · Windows Server 2019 (Server Core installation)version=10.0.17763.0 <10.0.17763.2803
Microsoft · Windows Server version 20H2version=10.0.0 <10.0.19042.1645
Microsoft · Windows 10 Version 1607version=10.0.14393.0 <10.0.14393.5066
Microsoft · Windows Server 2022version=10.0.20348.0 <10.0.20348.643
Microsoft · Windows 10 Version 1809version=10.0.0 <10.0.17763.2803; version=10.0.17763.0 <10.0.17763.2803

Published CVSS scores

4.4NIST NVDAV:L/AC:M/Au:N/C:P/I:P/A:P
7.0Microsoft CorporationCVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 9, 2026Sep 15, 2026
Latest reporting daySep 15, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectorlocal
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-362Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition')
T1068Exploitation for Privilege Escalation

Public exploit references

No public exploit references are available in this record.

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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