Cyber Resilience

CVE-2024-38148

Memory Safety in Microsoft Windows 11 21H2 ≤ 10.0.22000.3147

Published
13 August 2024
Modified
16 August 2024
Patch / advisory
CVSS Score v3.1 7.5
Click a component to see what it means
Raw vectorCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
EPSS Score 0.32 98th percentile
Risk Priority 80 floored blend · peak EPSS

Summary

CVE-2024-38148 is a high-severity Out-of-bounds Read (CWE-125) vulnerability in Microsoft Windows 11 21H2. Its CVSS base score is 7.5 (High).

Operationally, exploitation aligns with the MITRE ATT&CK technique Exploitation for Privilege Escalation (T1068); ranked in the top 2% of CVEs by exploit likelihood; it is not currently listed in the CISA KEV catalog.

The strongest mitigations our analysis identified map to SA-11 (Developer Testing and Evaluation) and SA-8 (Security and Privacy Engineering Principles) — 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.

CVE-2024-38148 is a denial of service vulnerability affecting the Windows Secure Channel component, also known as Schannel. It carries a CVSS 3.1 base score of 7.5 with the vector string AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H and is associated with CWE-125.

A remote attacker can exploit the flaw over the network without authentication or user interaction, resulting in a high impact on availability while leaving confidentiality and integrity unaffected. The EPSS score stands at 0.5974 with an identical peak value, indicating elevated exploitation probability without a documented rise after disclosure.

Microsoft's advisory for CVE-2024-38148 provides official guidance on mitigation and patching.

EU & UK References

Vulnerability Data

Windows Secure Channel Denial of Service Vulnerability

CWE(s)

Related Threats

MITRE ATT&CK Enterprise Techniques

T1068 Exploitation for Privilege Escalation Privilege Escalation
Adversaries may exploit software vulnerabilities in an attempt to elevate privileges.
T1190 Exploit Public-Facing Application Initial Access
Adversaries may attempt to exploit a weakness in an Internet-facing host or system to initially access a network.
T1203 Exploitation for Client Execution Execution
Adversaries may exploit software vulnerabilities in client applications to execute code.
T1210 Exploitation of Remote Services Lateral Movement
Adversaries may exploit remote services to gain unauthorized access to internal systems once inside of a network.
T1211 Exploitation for Stealth Stealth
Adversaries may exploit vulnerabilities to evade detection by hiding activity, suppressing logging, or operating within trusted or unmonitored components.
T1212 Exploitation for Credential Access Credential Access
Adversaries may exploit software vulnerabilities in an attempt to collect credentials.
Derived from this CVE’s CWE(s) via the direct CWE→ATT&CK cross-walk.

CVEs Like This One

CVE-2025-53805Same product: Microsoft Windows 11 22H2
CVE-2024-43508Same product: Microsoft Windows 11 22H2
CVE-2025-55339Same product: Microsoft Windows 11 22H2
CVE-2025-26675Same product: Microsoft Windows 11 22H2
CVE-2023-36696Same product: Microsoft Windows 11 21H2
CVE-2024-26172Same product: Microsoft Windows 11 21H2
CVE-2025-29971Same product: Microsoft Windows 11 22H2
CVE-2024-43555Same product: Microsoft Windows 11 21H2
CVE-2024-29994Same product: Microsoft Windows 11 21H2
CVE-2024-38184Same product: Microsoft Windows 11 21H2

Affected Assets

microsoft
windows 11 21h2
≤ 10.0.22000.3147
microsoft
windows 11 22h2
≤ 10.0.22621.4037
microsoft
windows 11 23h2
≤ 10.0.22631.4037
microsoft
windows 11 24h2
≤ 10.0.26100.1457
microsoft
windows server 2022
≤ 10.0.20348.2655
microsoft
windows server 2022 23h2
≤ 10.0.25398.1085

Mitigating Controls

Mitigating Controls (NIST 800-53 r5) AI

Developer testing and evaluation directly finds out-of-bounds read flaws through static analysis, fuzzing, and dynamic bounds checks.

Secure engineering principles require bounds checking and memory-safe constructs that stop out-of-bounds reads from being introduced.

Process isolation confines the effects of an out-of-bounds read to the compromised process.

Input validation rejects malformed indices or lengths that would otherwise cause reads outside buffer bounds.

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-development practices such as bounds checking and memory-safe languages directly prevent out-of-bounds reads.

ID.RA-01 partial match
prevents

Vulnerability scanning and recording can discover instances of out-of-bounds reads after code is deployed.

PR.PS-02 partial match
prevents

Routine patching replaces vulnerable code containing out-of-bounds read flaws.

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.

finds

Security testing in development and acceptance includes fuzzing and static analysis that detect out-of-bounds read defects before release.

A.8.15 Logging partial match
finds

Logging can record evidence of an out-of-bounds read but does not prevent the weakness itself.

prevents

Secure development life cycle mandates input validation and bounds checking that directly prevent out-of-bounds reads.

prevents

Application security requirements include explicit bounds and memory-safety specifications that mitigate buffer over-reads.

prevents

Secure system architecture and engineering principles require memory-safe design patterns and runtime protections against out-of-bounds access.

prevents

Secure coding standards explicitly forbid unsafe pointer arithmetic and mandate bounds-checked reads, eliminating CWE-125.

References