CVE-2024-43511

SYSTEM privilege escalation via kernel TOCTOU race

Published Oct 8, 2024 · Updated Aug 19, 2026

A TOCTOU race in the Windows kernel on affected Windows 10, Windows 11, and Windows Server releases allows local users to gain SYSTEM privileges. Microsoft identifies the weakness class but has not disclosed the kernel routine, raced resource, or mismatched check-and-use operations. Exploitation requires low-privilege local access and winning a high-complexity race; success grants full SYSTEM privileges.

CVSS severity7.0
High
EPSS probability0.38%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

A TOCTOU race in the Windows kernel on affected Windows 10, Windows 11, and Windows Server releases allows local users to gain SYSTEM privileges. Microsoft identifies the weakness class but has not disclosed the kernel routine, raced resource, or mismatched check-and-use operations. Exploitation requires low-privilege local access and winning a high-complexity race; success grants full SYSTEM privileges.

The record

CVE
CVE-2024-43511
Published
Oct 8, 2024
Updated
Aug 19, 2026
Vendor
Microsoft
Product
Windows 10 Version 1507
Classifications
CWE-367, T1068
Attack vector
local
Privileges
authenticated

Timeline

How it unfolded

  1. Oct 8, 2024CVE publishedPublication date reported by the CVE source.
  2. Aug 19, 2026Record 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 <10.0.10240.20826

What conditions does exploitation require?

Attack vectorlocal
Required privilegesauthenticated

What is affected?

Microsoft · Windows 10 Version 1507version=10.0.10240.0 <10.0.10240.20826
Microsoft · Windows Server 2019version=10.0.17763.0 <10.0.17763.6532
Microsoft · Windows Server 2016 (Server Core installation)version=10.0.14393.0 <10.0.14393.7515
Microsoft · Windows 11, version 24H2version=10.0.26100.0 <10.0.26100.2303
Microsoft · Windows 11 version 21H2version=10.0.22000.0 <10.0.22000.3260
Microsoft · Windows 10 Version 21H2version=10.0.19044.0 <10.0.19044.5131
Microsoft · Windows Server 2022, 23H2 Edition (Server Core installation)version=10.0.25398.0 <10.0.25398.1251
Microsoft · Windows Server 2016version=10.0.14393.0 <10.0.14393.7515
Microsoft · Windows 11 Version 22H3version=10.0.22631.0 <10.0.22631.4460
Microsoft · Windows 10 Version 22H2version=10.0.19045.0 <10.0.19045.5131
Microsoft · Windows Server 2019 (Server Core installation)version=10.0.17763.0 <10.0.17763.6532
Microsoft · Windows 11 Version 23H2version=10.0.22631.0 <10.0.22631.4460
Microsoft · Windows 11, version 22H2version=10.0.22621.0 <10.0.22621.4460
Microsoft · Windows 10 Version 1607version=10.0.14393.0 <10.0.14393.7515
Microsoft · Windows Server 2022version=10.0.20348.0 <10.0.20348.2849
Microsoft · Windows 10 Version 1809version=10.0.17763.0 <10.0.17763.6532

Published CVSS scores

7.0MicrosoftCVSS: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 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectorlocal
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-367Time-of-check Time-of-use (TOCTOU) 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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