Security Resilience

CVE-2023-36904

Memory Safety in Microsoft Windows 11 21H2 ≤ 10.0.22000.2295

Memory Safety
Published
08 August 2023
Modified
10 August 2026
Patch / advisory
View 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 0.0058 47th percentile
Risk Priority 58 floored blend · peak EPSS

CVSS and EPSS are reproduced from their sources (NVD, FIRST EPSS). Risk Priority is our own derived reading, not an NVD score.

Summary

CVE-2023-36904 is a high-severity Buffer Over-read (CWE-126) vulnerability in Microsoft Windows 11 21H2. Its CVSS base score is 7.8 (High).

Operationally, exploitation aligns with the MITRE ATT&CK technique Protocol or Service Impersonation (T1001.003); ranked at the 47th percentile by exploit likelihood (below the median); it is not currently listed in the CISA KEV catalog.

EU & UK References

Vulnerability Data

Windows Cloud Files Mini Filter Driver Elevation of Privilege Vulnerability

CWE(s)
CWE-126NVD-CWE-noinfo

Related Threats

MITRE ATT&CK Enterprise Techniques

T1001.003 Protocol or Service Impersonation Command And Control
Adversaries may impersonate legitimate protocols or web service traffic to disguise command and control activity and thwart analysis efforts.
attack.mitre.org →
T1003 OS Credential Dumping Credential Access
Adversaries may attempt to dump credentials to obtain account login and credential material, normally in the form of a hash or a clear text password.
attack.mitre.org →
T1003.004 LSA Secrets Credential Access
Adversaries with SYSTEM access to a host may attempt to access Local Security Authority (LSA) secrets, which can contain a variety of different credential materials, such as credentials for service accounts.
attack.mitre.org →
T1003.006 DCSync Credential Access
Adversaries may attempt to access credentials and other sensitive information by abusing a Windows Domain Controller's application programming interface (API)(Citation: Microsoft DRSR Dec 2017) (Citation: Microsoft GetNCCChanges) (Citati…
attack.mitre.org →
T1003.007 Proc Filesystem Credential Access
Adversaries may gather credentials from the proc filesystem or `/proc`.
attack.mitre.org →
T1005 Data from Local System Collection
Adversaries may search local system sources, such as file systems, configuration files, local databases, virtual machine files, or process memory, to find files of interest and sensitive data prior to Exfiltration.
attack.mitre.org →
Derived from this CVE’s CWE(s) via the direct CWE→ATT&CK cross-walk.

CVEs Like This One

CVE-2025-21271Same product: Microsoft Windows 10 1809
CVE-2023-32085Same product: Microsoft Windows 10 1809
CVE-2023-35324Same product: Microsoft Windows 10 1809
CVE-2023-35330Same product: Microsoft Windows 10 1809
CVE-2023-33166Same product: Microsoft Windows 10 1809
CVE-2023-33169Same product: Microsoft Windows 10 1809
CVE-2023-33167Same product: Microsoft Windows 10 1809
CVE-2023-33172Same product: Microsoft Windows 10 1809
CVE-2023-24857Same product: Microsoft Windows 10 1809
CVE-2023-36581Same product: Microsoft Windows 10 1809

Affected Assets

microsoft
windows 10 1809
≤ 10.0.17763.4737
microsoft
windows 10 21h2
≤ 10.0.19044.3324
microsoft
windows 10 22h2
≤ 10.0.19045.3324
microsoft
windows 11 21h2
≤ 10.0.22000.2295 · ≤ 10.0.22000.2295
microsoft
windows 11 22h2
≤ 10.0.22621.2134 · ≤ 10.0.22621.2134
microsoft
windows server 2019
all versions
microsoft
windows server 2022
all versions

Mitigating Controls

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.

ID.RA-01 partial match
blocks

Vulnerability identification processes can discover buffer over-read flaws via scanning or review.

PR.PS-02 partial match
blocks

Patching or replacing vulnerable software removes known instances of buffer over-read bugs.

PR.PS-06 partial match
blocks

Secure development practices directly prevent introduction of buffer over-read weaknesses.

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.

A.5.14 Information transfer partial match
removes
A.5.15 Access control partial match
removes
A.5.16 Identity management partial match
removes
A.5.17 Authentication information partial match
removes
A.5.18 Access rights partial match
removes
A.8.10 Information deletion partial match
removes

References