CVE-2023-36424: Microsoft Windows Out-of-Bounds Read Vulnerability

What it is

Windows Common Log File System Driver Elevation of Privilege Vulnerability

Description quoted from the CVE record (assigned by microsoft, published 2023-11-14).

Weakness: CWE-125: Out-of-bounds Read

How it can be exploited

Exploitable with local access with low attack complexity needing low privileges and no user interaction. Impact: confidentiality high, integrity high, availability high. CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C

CISA assessment (SSVC): CISA assesses exploitation as active. Automatable: no. Technical impact: total.

On CISA KEV since

2026-04-13

US federal deadline

2026-04-27

Ransomware use

Not known

Public exploit evidence (Exploit Observer)

Also known as: BDU:2023-08241, CNNVD-202311-1076, EUVD-2023-40389, GHSA-5wf7-vwpm-xxwx

VEDAS cluster: VEDAS:BETADRAKE

Exploit Observer links 2 pieces of public exploit code or detection modules that name this CVE or one of its aliases.

Exploit code and modules (2)

Code that names this CVE. A repository can be a working exploit, a scanner, a fake or malware; read it before running anything.

• Code repository: https://github.com/nassim-asrir/cve-2023-36424
• Code repository: https://github.com/zerozenxlabs/cve-2023-36424

Research and write-ups (1)

• Research or write-up: https://www.rapid7.com/db/vulnerabilities/msft-cve-2023-36424

Vulnerability databases and vendor advisories (6)

Catalogue entries, not exploit evidence.

• Vulnerability database or vendor advisory: https://euvd.enisa.europa.eu/enisa/EUVD-2023-40389
• Vulnerability database or vendor advisory: https://github.com/advisories/GHSA-5wf7-vwpm-xxwx
• Vulnerability database or vendor advisory: https://msrc.microsoft.com/update-guide/en-US/vulnerability/CVE-2023-36424
• Vulnerability database or vendor advisory: https://nvd.nist.gov/vuln/detail/CVE-2023-36424
• Vulnerability database or vendor advisory: https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2023-36424
• Vulnerability database or vendor advisory: https://www.cnnvd.org.cn/home/globalSearch?keyword=CNNVD-202311-1076

87 more references returned by Exploit Observer did not name this CVE or an alias, so they are left out.

VEDAS data as of 2026-11-01T17:12 UTC; fetched 2026-11-02.

Live scores

EPSS

0.121
likely to be attacked soon

VEDAS

0.978
strong exploit evidence

On CISA KEV

Yes, since 2026-04-13

Detection rule

None yet

Thin horizontal line: the “likely” (EPSS 0.10) or “strong” (VEDAS 0.90) threshold. Shaded “no data” areas are periods when cve-scores did not publish. The vertical line is the day CISA added it to its exploited list.

Who is affected

5 more products are listed in the CVE record.

Version ranges exactly as the CVE record states them. “Before X” means X is the first fixed version.

Exploit Observer also maps it to: microsoft windows_10_1507, microsoft windows_10_1607, microsoft windows_10_1809, microsoft windows_10_21h2, microsoft windows_10_22h2, microsoft windows_11_21h2, microsoft windows_11_22h2, microsoft windows_11_23h2, microsoft windows_server_2008, microsoft windows_server_2012.

How to fix it

Fixed versions stated in the CVE record: 10.0.22631.2715, 10.0.25398.531, 10.0.17763.5122, 10.0.20348.2113, 10.0.22000.2600, 10.0.19043.3693, 10.0.22621.2715, 10.0.19045.3693, 10.0.10240.20308, 10.0.14393.6452, 6.0.6003.22367, 6.1.7601.26816 and others.

CISA required action: Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.

Vendor guidance:

• Windows Common Log File System Driver Elevation of Privilege Vulnerability (vendor-advisory)

How to detect it

There is no open VEDAS detection rule for this bug yet. It is listed on the detection gaps page if CISA has confirmed attacks.

References

Vendor advisories and patches

• Windows Common Log File System Driver Elevation of Privilege Vulnerability (vendor-advisory)

Government sources

• https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2023-36424 (government-resource)

Other databases

• CVE record (cve.org)
• NVD
• Exploit Observer

Where this comes from

This advisory is generated automatically by VEDAS from: CVE.org record, CISA KEV, cve-scores (EPSS and VEDAS), Exploit Observer. Text in quotes is reproduced from the source; everything else is a fixed template filled with source fields. Nothing here is written by a language model. Check the vendor advisory before acting, and read how VEDAS and Exploit Observer work, and their limits.