Security Resilience

CVE-2024-21391

Microsoft Windows Server 2008 r2

Published
13 February 2024
Modified
10 August 2026
Patch / advisory
View advisory
CVSS Score v3.1 8.8
Click a component to see what it means
Raw vectorCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
EPSS Score 0.016 76th percentile
Risk Priority 68 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-2024-21391 is a high-severity Numeric Truncation Error (CWE-197) vulnerability in Microsoft Windows Server 2008. Its CVSS base score is 8.8 (High).

Operationally, exploitation aligns with the MITRE ATT&CK technique Steganography (T1001.002); ranked in the top 24% 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-15 (Development Process, Standards, and Tools) — see the control section below for these in your framework.

EU & UK References

Vulnerability Data

Microsoft WDAC OLE DB provider for SQL Server Remote Code Execution Vulnerability

CWE(s)
CWE-197NVD-CWE-noinfo

Related Threats

MITRE ATT&CK Enterprise Techniques

T1001.002 Steganography Command And Control
Adversaries may use steganographic techniques to hide command and control traffic to make detection efforts more difficult.
attack.mitre.org →
T1003.002 Security Account Manager Credential Access
Adversaries may attempt to extract credential material from the Security Account Manager (SAM) database either through in-memory techniques or through the Windows Registry where the SAM database is stored.
attack.mitre.org →
T1003.005 Cached Domain Credentials Credential Access
Adversaries may attempt to access cached domain credentials used to allow authentication to occur in the event a domain controller is unavailable.
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 →
T1014 Rootkit Stealth
Adversaries may use rootkits to hide the presence of programs, files, network connections, services, drivers, and other system components.
attack.mitre.org →
Derived from this CVE’s CWE(s) via the direct CWE→ATT&CK cross-walk.

CVEs Like This One

CVE-2024-30015Same product: Microsoft Windows 10 1507
CVE-2024-21451Same product: Microsoft Windows 10 1507
CVE-2024-21429Same product: Microsoft Windows 10 1507
CVE-2024-30014Same product: Microsoft Windows 10 1507
CVE-2024-30029Same product: Microsoft Windows 10 1507
CVE-2024-21352Same product: Microsoft Windows 10 1507
CVE-2024-21440Same product: Microsoft Windows 10 1507
CVE-2024-30009Same product: Microsoft Windows 10 1507
CVE-2024-30024Same product: Microsoft Windows 10 1507
CVE-2024-30023Same product: Microsoft Windows 10 1507

Affected Assets

microsoft
windows 10 1507
≤ 10.0.10240.20469
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
all versions, r2
microsoft
windows server 2012
all versions, r2
+4 more product configuration(s) — see NVD for full list

Mitigating Controls

Mitigating Controls (NIST 800-53 r5) AI

SA-11 Developer Testing and Evaluation good match

Developer testing and evaluation can discover truncation errors through static analysis, dynamic testing, or code review.

SA-15 Development Process, Standards, and Tools partial match

Documented development standards and tools can mandate use of safe arithmetic libraries or explicit checks against truncation.

SA-8 Security and Privacy Engineering Principles partial match

Engineering principles can require safe type conversions and avoidance of narrowing casts that cause truncation.

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 partial match
blocks

Secure SDLC practices directly prevent truncation errors via reviews, static analysis, and safe type handling.

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.8.19 Installation of software on operational systems partial match
removes
A.8.25 Secure development life cycle partial match
blocks

Secure development lifecycle mandates practices that can catch numeric truncation during design and code review.

A.8.26 Application security requirements partial match
removes
A.8.27 Secure system architecture and engineering principles partial match
removes
A.8.28 Secure coding partial match
prevents

Secure coding standards directly prohibit unsafe narrowing conversions and truncation.

A.8.29 Security testing in development and acceptance partial match
finds

Security testing can detect truncation bugs through static analysis and fuzzing.

References