Security Resilience

CVE-2024-21406

Microsoft Windows Server 2012 ≤ 6.2.9200.24710

Published
13 February 2024
Modified
10 August 2026
Patch / advisory
View 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:H/A:N
EPSS Score 0.0086 58th percentile
Risk Priority 60 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-2024-21406 is a high-severity Cleartext Transmission of Sensitive Information (CWE-319) vulnerability in Microsoft Windows Server 2012. Its CVSS base score is 7.5 (High).

Operationally, exploitation aligns with the MITRE ATT&CK technique Network Sniffing (T1040); ranked in the top 42% of CVEs by exploit likelihood; it is not currently listed in the CISA KEV catalog.

The strongest mitigations our analysis identified map to SC-8 (Transmission Confidentiality and Integrity) — see the control section below for these in your framework.

OWASP Top 10 for Web (2025)

A04:2025 Cryptographic Failures

EU & UK References

Vulnerability Data

Windows Printing Service Spoofing Vulnerability

CWE(s)
CWE-319NVD-CWE-noinfo

Related Threats

MITRE ATT&CK Enterprise Techniques

T1040 Network Sniffing Credential Access
Adversaries may passively sniff network traffic to capture information about an environment, including authentication material passed over the network.
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 →
T1003.008 /etc/passwd and /etc/shadow Credential Access
Adversaries may attempt to dump the contents of <code>/etc/passwd</code> and <code>/etc/shadow</code> to enable offline password cracking.
attack.mitre.org →
T1006 Direct Volume Access Stealth
Adversaries may directly access a volume to bypass file access controls and file system monitoring.
attack.mitre.org →
T1007 System Service Discovery Discovery
Adversaries may try to gather information about registered local system services.
attack.mitre.org →
T1010 Application Window Discovery Discovery
Adversaries may attempt to get a listing of open application windows.
attack.mitre.org →
Derived from this CVE’s CWE(s) via the direct CWE→ATT&CK cross-walk.

CVEs Like This One

CVE-2024-0056Same product: Microsoft Windows 10 1607
CVE-2026-34346Same product: Microsoft Windows 10 1607
CVE-2025-53139Same product: Microsoft Windows 10 21H2
CVE-2024-30084Same product: Microsoft Windows 10 1607
CVE-2024-30095Same product: Microsoft Windows 10 1607
CVE-2024-38051Same product: Microsoft Windows 10 1607
CVE-2024-38060Same product: Microsoft Windows 10 1607
CVE-2024-38054Same product: Microsoft Windows 10 1607
CVE-2024-38025Same product: Microsoft Windows 10 1607
CVE-2024-21313Same product: Microsoft Windows 10 1607

Affected Assets

microsoft
windows 10 1607
≤ 10.0.14393.6709
microsoft
windows 10 1809
≤ 10.0.17763.5458
microsoft
windows 10 21h2
≤ 10.0.19044.4046
microsoft
windows 10 22h2
≤ 10.0.19045.4046
microsoft
windows 11 21h2
≤ 10.0.22000.2777
microsoft
windows 11 22h2
≤ 10.0.22621.3155
microsoft
windows 11 23h2
≤ 10.0.22631.3155
microsoft
windows server 2008
r2
microsoft
windows server 2012
r2 · ≤ 6.2.9200.24710
microsoft
windows server 2016
≤ 10.0.14393.6709
+3 more product configuration(s) — see NVD for full list

Mitigating Controls

Mitigating Controls (NIST 800-53 r5) AI

SC-8 Transmission Confidentiality and Integrity good match

SC-8 directly requires protecting confidentiality of transmitted information, which structurally eliminates cleartext transmission of sensitive data.

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.DS-02 partial match
blocks

Encryption of data-in-transit directly prevents cleartext transmission while the control also addresses integrity and availability.

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
blocks

Mandating cryptographic protection and stronger authentication on public networks stops the transmission of plaintext sensitive information.

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