Cyber Resilience

CVE-2024-43546

Microsoft Windows 10 21H2 ≤ 10.0.19044.5011

Published
08 October 2024
Modified
17 October 2024
Patch / advisory
View advisory
CVSS Score v3.1 5.6
Click a component to see what it means
Raw vectorCVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:C/C:H/I:N/A:N
EPSS Score 0.0063 47th percentile
Risk Priority 42 floored blend · peak EPSS

Summary

CVE-2024-43546 is a medium-severity Observable Discrepancy (CWE-203) vulnerability in Microsoft Windows 10 21H2. Its CVSS base score is 5.6 (Medium).

Operationally, exploitation aligns with the MITRE ATT&CK technique Account Discovery (T1087); ranked at the 47th percentile by exploit likelihood (below the median); it is not currently listed in the CISA KEV catalog.

The strongest mitigations our analysis identified map to IA-6 (Authentication Feedback) and SI-11 (Error Handling) — see the control section below for these in your framework.

EU & UK References

Vulnerability Data

Windows Cryptographic Information Disclosure Vulnerability

CWE(s)
CWE-203NVD-CWE-noinfo

Related Threats

MITRE ATT&CK Enterprise Techniques

T1087 Account Discovery Discovery
Adversaries may attempt to get a listing of valid accounts, usernames, or email addresses on a system or within a compromised environment.
attack.mitre.org →
T1110 Brute Force Credential Access
Adversaries may use brute force techniques to gain access to accounts when passwords are unknown or when password hashes are obtained.
attack.mitre.org →
T1595 Active Scanning Reconnaissance
Adversaries may execute active reconnaissance scans to gather information that can be used during targeting.
attack.mitre.org →
Derived from this CVE’s CWE(s) via the direct CWE→ATT&CK cross-walk.

CVEs Like This One

CVE-2025-21336Same product: Microsoft Windows 10 21H2
CVE-2024-43529Same product: Microsoft Windows 10 21H2
CVE-2024-38137Same product: Microsoft Windows 10 21H2
CVE-2024-38248Same product: Microsoft Windows 10 21H2
CVE-2024-38147Same product: Microsoft Windows 10 21H2
CVE-2024-38150Same product: Microsoft Windows 10 21H2
CVE-2024-38246Same product: Microsoft Windows 10 21H2
CVE-2024-43574Same product: Microsoft Windows 10 21H2
CVE-2024-38059Same product: Microsoft Windows 10 21H2
CVE-2024-21445Same product: Microsoft Windows 10 21H2

Affected Assets

microsoft
windows 10 21h2
≤ 10.0.19044.5011
microsoft
windows 10 22h2
≤ 10.0.19045.5011
microsoft
windows 11 21h2
≤ 10.0.22000.3260
microsoft
windows 11 22h2
≤ 10.0.22621.4317
microsoft
windows 11 23h2
≤ 10.0.22631.4317
microsoft
windows 11 24h2
≤ 10.0.26100.2033
microsoft
windows server 2022
≤ 10.0.20348.2762
microsoft
windows server 2022 23h2
≤ 10.0.25398.1189

Mitigating Controls

Control response

Prevent
Stop it (NIST 800-53)

—

Detect
Catch it (NIST detect / respond)

—

Harden
Shrink the surface (DISA STIG)
  • 1 hardening rule · 1 OS baseline
Validate
Prove the fix (OWASP ASVS)

—

Mitigating Controls (NIST 800-53 r5) AI

IA-6 Authentication Feedback good match

Obscures authentication feedback so that success/failure differences are not observable to attackers.

SI-11 Error Handling good match

Requires error messages to avoid revealing exploitable details, directly stopping observable response discrepancies.

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 SDLC practices directly prevent observable response discrepancies via consistent error handling and timing.

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.8.17 Clock synchronization none match
none

Accurate, synchronized timestamps reduce observable timing discrepancies that an attacker could exploit to infer sensitive information or distinguish between success and failure paths.

References