Cyber Resilience

CVE-2024-26218

Race Condition in Microsoft Windows 10 1809 ≤ 10.0.17763.5696

Published
09 April 2024
Modified
17 June 2026
Patch / advisory
CVSS Score v3.1 7.8
Click a component to see what it means
Raw vectorCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
EPSS Score 0.13 96th percentile
Risk Priority 73 floored blend · peak EPSS

Summary

CVE-2024-26218 is a high-severity Time-of-check Time-of-use (TOCTOU) Race Condition (CWE-367) vulnerability in Microsoft Windows 10 1809. Its CVSS base score is 7.8 (High).

Operationally, exploitation aligns with the MITRE ATT&CK technique Path Interception (T1034); ranked in the top 4% of CVEs by exploit likelihood; it is not currently listed in the CISA KEV catalog.

The strongest mitigations our analysis identified map to AC-25 (Reference Monitor) and AC-3 (Access Enforcement) — see the control section below for these in your framework.

Deeper analysis AI-assisted summary

Synthesised by an AI model from the NVD description and linked references — a reading aid, not an authoritative source.

Windows Kernel Elevation of Privilege Vulnerability CVE-2024-26218 affects the Windows kernel and carries a CVSS 7.8 score reflecting local attack vector, low attack complexity, and low privileges required. The associated CWEs include CWE-367, indicating a time-of-check to time-of-use race condition class of flaw.

An authenticated local attacker can exploit the issue without user interaction to elevate privileges and obtain full control over confidentiality, integrity, and availability on the affected system. The published EPSS score has reached a peak of 0.3263 with a current value of 0.2715, indicating measurable post-disclosure interest in exploitation.

Microsoft has published guidance for the vulnerability in its security update catalog at the referenced advisory URL, which practitioners should consult for available patches and configuration steps.

EU & UK References

Vulnerability Data

Windows Kernel Elevation of Privilege Vulnerability

CWE(s)

Related Threats

MITRE ATT&CK Enterprise Techniques

T1034 Path Interception Persistence
**This technique has been deprecated.
T1548 Abuse Elevation Control Mechanism Privilege Escalation
Adversaries may circumvent mechanisms designed to control privilege elevation to gain higher-level permissions.
T1574 Hijack Execution Flow Stealth
Adversaries may execute their own malicious payloads by hijacking the way operating systems run programs.
Derived from this CVE’s CWE(s) via the direct CWE→ATT&CK cross-walk.

CVEs Like This One

CVE-2024-38186Same product: Microsoft Windows 10 1809
CVE-2024-35265Same product: Microsoft Windows 10 1809
CVE-2024-21362Same product: Microsoft Windows 10 1809
CVE-2024-30099Same product: Microsoft Windows 10 1809
CVE-2024-30088Same product: Microsoft Windows 10 1809
CVE-2024-21371Same product: Microsoft Windows 10 1809
CVE-2024-21433Same product: Microsoft Windows 10 1809
CVE-2024-43511Same product: Microsoft Windows 10 1809
CVE-2024-43452Same product: Microsoft Windows 10 1809
CVE-2025-55680Same product: Microsoft Windows 10 1809

Affected Assets

microsoft
windows 10 1809
≤ 10.0.17763.5696
microsoft
windows 10 21h2
≤ 10.0.19044.4291
microsoft
windows 10 22h2
≤ 10.0.19045.4291
microsoft
windows 11 21h2
≤ 10.0.22000.2899
microsoft
windows 11 22h2
≤ 10.0.22621.3447
microsoft
windows 11 23h2
≤ 10.0.22631.3447
microsoft
windows server 2019
≤ 10.0.17763.5696
microsoft
windows server 2022
≤ 10.0.20348.2402
microsoft
windows server 2022 23h2
≤ 10.0.25398.830

Mitigating Controls

Control response

Prevent
Stop it (NIST 800-53)

Detect
Catch it (NIST detect / respond)

Harden
Shrink the surface (DISA STIG)

Validate
Prove the fix (OWASP ASVS)
  • V15.4.2
  • V17.2.6

Mitigating Controls (NIST 800-53 r5) AI

A reference monitor that is always invoked and analyzable structurally eliminates the non-atomic check-then-use pattern underlying TOCTOU.

Access enforcement that performs an atomic check-and-use decision directly stops the window in which a TOCTOU race can be exploited.

Process isolation limits the blast radius of a successful TOCTOU exploitation but does not remove the race itself.

Mitigating Controls (NIST CSF 2.0) AI

Derived directly from the weakness types (CWEs) cited in the NVD entry via our AI-authored CWE→CSF cross-walk (authority under review) — links open the control.

PR.PS-06 mostly match
prevents

Secure SDLC practices directly include coding standards and reviews that prevent TOCTOU race conditions.

Mitigating Controls (ISO/IEC 27001:2022 Annex A) AI

Derived directly from the weakness types (CWEs) cited in the NVD entry via our AI-authored CWE→ISO cross-walk (authority under review) — links open the control.

none

Reliable, synchronized time across systems narrows the exploitable window in which a resource state can change between a security check and its use.

References