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CVE-2023-36424

Microsoft Windows Out-of-Bounds Read

7.8 HIGHActively exploited (CISA KEV)EPSS 12.2%
  1. Published14 Nov 2023
  2. Added to CISA KEV13 Apr 2026
  3. Remediation due27 Apr 2026
Actively exploited (CISA KEV)

Microsoft Windows Common Log File System Driver contains an out-of-bounds read vulnerability that could allow a threat actor for privileges escalation

Added to KEV: 13 Apr 2026Federal remediation due: 27 Apr 2026

Description

Windows Common Log File System Driver Elevation of Privilege Vulnerability

CVSS 3.1 breakdown

Attack vectorLocal
Attack complexityLow
Privileges requiredLow
User interactionNone
ScopeUnchanged
ConfidentialityHigh
IntegrityHigh
AvailabilityHigh
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Affected products

Microsoft Windows 10 1507< 10.0.10240.20308
Microsoft Windows 10 1607< 10.0.14393.6452
Microsoft Windows 10 1809< 10.0.17763.5122
Microsoft Windows 10 21h2< 10.0.19044.3693
Microsoft Windows 10 22h2< 10.0.19045.3693
Microsoft Windows 11 21h2< 10.0.22000.2600
Microsoft Windows 11 22h2< 10.0.22621.2715
Microsoft Windows 11 23h2< 10.0.22631.2715
Microsoft Windows Server 2008r2
Microsoft Windows Server 2012r2
Microsoft Windows Server 2016< 10.0.14393.6452
Microsoft Windows Server 2019< 10.0.17763.5122
Microsoft Windows Server 2022< 10.0.20348.2091
Microsoft Windows Server 2022 23h2< 10.0.25398.531

Remediation

Fixed in
Microsoft Windows 10 1507≥ 10.0.10240.20308
Microsoft Windows 10 1607≥ 10.0.14393.6452
Microsoft Windows 10 1809≥ 10.0.17763.5122
Microsoft Windows 10 21h2≥ 10.0.19044.3693
Microsoft Windows 10 22h2≥ 10.0.19045.3693
Microsoft Windows 11 21h2≥ 10.0.22000.2600
Microsoft Windows 11 22h2≥ 10.0.22621.2715
Microsoft Windows 11 23h2≥ 10.0.22631.2715
Microsoft Windows Server 2016≥ 10.0.14393.6452
Microsoft Windows Server 2019≥ 10.0.17763.5122

References

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Frequently asked

Is CVE-2023-36424 being actively exploited?

Yes. CVE-2023-36424 is listed in the CISA Known Exploited Vulnerabilities (KEV) catalog, added 13 Apr 2026.

How severe is CVE-2023-36424?

CVE-2023-36424 has a CVSS 3.1 base score of 7.8, rated high. EPSS estimates a 12.2% probability of exploitation.

Which products are affected by CVE-2023-36424?

Affected products include Microsoft Windows 10 1507, Microsoft Windows 10 1607, Microsoft Windows 10 1809, Microsoft Windows 10 21h2, Microsoft Windows 10 22h2, and 9 more.

How do I fix CVE-2023-36424?

Upgrade affected software to a fixed version, for example Microsoft Windows 10 1507 10.0.10240.20308, Microsoft Windows 10 1607 10.0.14393.6452, Microsoft Windows 10 1809 10.0.17763.5122 or later, then confirm no affected versions remain in your inventory.

How Secuno handles this

Secuno correlates vulnerabilities like CVE-2023-36424 against the real software inventory on every managed device, every day. Rather than a static severity, each match is scored in context: exploit availability, EPSS, the asset's exposure, and business criticality decide where it lands in the queue. Because it is on the CISA KEV list, Secuno flags any affected asset as top-priority automatically. If an affected version is present anywhere across your portfolio, it surfaces automatically with a prioritised remediation path.

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Data from the NVD, CISA KEV catalog and FIRST EPSS. CVSS 3.1 base score shown where available.