How severe is CVE-2023-36424?

CVE-2023-36424 has a CVSS score of 7.8/10, rated HIGH. Immediate patching is strongly recommended.

Which packages are affected by CVE-2023-36424?

Affected package information for CVE-2023-36424 is not yet fully mapped. Check the official advisory links for details.

How do I fix CVE-2023-36424?

No fixed version has been published for CVE-2023-36424 yet. Monitor the advisory for updates, apply mitigations recommended by the vendor, and use O3 Security to track when a fix becomes available in your stack.

Is CVE-2023-36424 actively exploited in the wild?

Yes. There are 3 known exploit references for CVE-2023-36424, including 2 in-the-wild exploitations observed on GitHub and other sources. Treat this as actively exploitable and prioritize patching immediately. All exploit code should only be run in an isolated sandbox environment for research or authorized testing — never against production systems without explicit written authorization.

What is the EPSS score for CVE-2023-36424?

CVE-2023-36424 has an EPSS (Exploit Prediction Scoring System) score of 9.8%, placing it in the 93th percentile of all CVEs. EPSS is maintained by FIRST.org and estimates the probability that a vulnerability will be exploited in the wild within the next 30 days. This score indicates relatively lower exploitation probability, though the CVSS severity should still guide your patching priority.

Is CVE-2023-36424 in the CISA Known Exploited Vulnerabilities catalog?

Yes. CVE-2023-36424 (Microsoft Windows Out-of-Bounds Read Vulnerability) was added to CISA's Known Exploited Vulnerabilities (KEV) catalog on 2026-04-13. CISA required all US federal civilian agencies to remediate this vulnerability by 2026-04-27. The required action was: Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable. Being listed in the KEV catalog is the strongest possible confirmation of active exploitation — treat this as a critical priority.

What type of vulnerability is CVE-2023-36424?

CVE-2023-36424 is classified as Out-of-bounds Read (CWE-125). This weakness type describe the underlying flaw category, which helps determine the potential impact and the right class of mitigation.

Which products and versions are affected by CVE-2023-36424?

CVE-2023-36424 affects microsoft windows 10 21h2; microsoft windows 10 22h2; microsoft windows 10 1507; microsoft windows 10 1607, and 10 more product(s). Check the affected-products list on this page against your deployed version to confirm exposure.

When was CVE-2023-36424 published, and has it been updated?

CVE-2023-36424 was published on November 14, 2023 and was last updated on April 14, 2026. Advisory data evolves as severity scores, affected ranges, and exploit intelligence are revised — always check the latest version of the advisory before acting.

CISA KEV·Added 2026-04-13 — agencies required to remediate by 2026-04-27

CVE-2023-36424

HIGH

Windows Common Log File System Driver Elevation of Privilege Vulnerability

Published

Nov 14, 2023

Updated

Apr 14, 2026

Affected

0 pkgs

Patched

None yet

Exploits

3 known

EPSS Exploitation Probability

via FIRST.org ↗

9.8%probability of exploitation in next 30 days

Lower Risk93th percentile-1.44%

EPSS (Exploit Prediction Scoring System) is a daily probability model maintained by FIRST.org. It estimates the likelihood a CVE will be exploited in production environments within the next 30 days, derived from real-world threat intelligence signals.

Description

Windows Common Log File System Driver Elevation of Privilege Vulnerability

Affected Products

14 products · 21 configurations

windows 10 21h2microsoft

< 10.0.19044.3693

range

windows 10 22h2microsoft

< 10.0.19045.3693

range

windows 10 1507microsoft

< 10.0.10240.20308

range

windows 10 1607microsoft

< 10.0.14393.6452

range

windows 10 1809microsoft

< 10.0.17763.5122

range

windows 11 21h2microsoft

< 10.0.22000.2600

range

Exploits & PoCs

Research use only. For defensive security, authorized penetration testing, and academic research only. Never execute exploit code against systems without explicit written authorization.

Windows Common Log File System Driver Elevation of Privilege Vulnerabili…

github.comGithubMar 2024

Windows Common Log File System Driver Elevation of Privilege Vulnerabili…

github.comGithubMar 2024

Frequently Asked Questions

Windows Common Log File System Driver Elevation of Privilege Vulnerability

O3 Security · Impact-Aware SCA

Is CVE-2023-36424 in your stack?

O3 detects CVE-2023-36424 across dependencies and uses function-level reachability to confirm whether the vulnerable code path is actually reachable — not just present. No false positives.

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