Security Resilience

CVE-2024-43638

Memory Safety in Microsoft Windows 10 1507 ≤ 10.0.10240.20826

Published
12 November 2024
Modified
18 November 2024
Patch / advisory
CVSS Score v3.1 6.8
Click a component to see what it means
Raw vectorCVSS:3.1/AV:P/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
EPSS Score 0.0074 54th percentile
Risk Priority 52 floored blend · peak EPSS

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

Summary

CVE-2024-43638 is a medium-severity Out-of-bounds Read (CWE-125) vulnerability in Microsoft Windows 10 1507. Its CVSS base score is 6.8 (Medium).

Operationally, exploitation aligns with the MITRE ATT&CK technique Endpoint Denial of Service (T1499); ranked in the top 46% 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.

EU & UK References

Vulnerability Data

Windows USB Video Class System Driver Elevation of Privilege Vulnerability

CWE(s)

Related Threats

MITRE ATT&CK Enterprise Techniques

T1499 Endpoint Denial of Service Impact
Adversaries may perform Endpoint Denial of Service (DoS) attacks to degrade or block the availability of services to users.
T1068 Exploitation for Privilege Escalation Privilege Escalation
Adversaries may exploit software vulnerabilities in an attempt to elevate privileges.
T1185 Browser Session Hijacking Collection
Adversaries may take advantage of security vulnerabilities and inherent functionality in browser software to change content, modify user-behaviors, and intercept information as part of various browser session hijacking techniques.
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.
T1211 Exploitation for Stealth Stealth
Adversaries may exploit vulnerabilities to evade detection by hiding activity, suppressing logging, or operating within trusted or unmonitored components.
Derived from this CVE’s CWE(s) via the direct CWE→ATT&CK cross-walk.

CVEs Like This One

CVE-2024-43643Same product: Microsoft Windows 10 1507
CVE-2025-29961Same product: Microsoft Windows 10 1507
CVE-2025-21265Same product: Microsoft Windows 10 1507
CVE-2025-21341Same product: Microsoft Windows 10 1507
CVE-2025-27742Same product: Microsoft Windows 10 1507
CVE-2024-43449Same product: Microsoft Windows 10 1507
CVE-2025-21260Same product: Microsoft Windows 10 1507
CVE-2025-21226Same product: Microsoft Windows 10 1507
CVE-2024-43644Same product: Microsoft Windows 10 1507
CVE-2025-21249Same product: Microsoft Windows 10 1507

Affected Assets

microsoft
windows 10 1507
≤ 10.0.10240.20826 · ≤ 10.0.10240.20826
microsoft
windows 10 1607
≤ 10.0.14393.7515 · ≤ 10.0.14393.7515
microsoft
windows 10 1809
≤ 10.0.17763.6532 · ≤ 10.0.17763.6532
microsoft
windows 10 21h2
≤ 10.0.19044.5131 · ≤ 10.0.19044.5131 · ≤ 10.0.19044.5131
microsoft
windows 10 22h2
≤ 10.0.19045.5131 · ≤ 10.0.19045.5131 · ≤ 10.0.19045.5131
microsoft
windows 11 22h2
≤ 10.0.22621.4460 · ≤ 10.0.22621.4460
microsoft
windows 11 23h2
≤ 10.0.22631.4460 · ≤ 10.0.22631.4460
microsoft
windows 11 24h2
≤ 10.0.26100.2314 · ≤ 10.0.26100.2314
microsoft
windows server 2008
all versions, r2
microsoft
windows server 2012
all versions, r2
+5 more product configuration(s) — see NVD for full list

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
blocks

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

ID.RA-01 partial match
blocks

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

PR.PS-02 partial match
blocks

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.

prevents

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

References