Security Resilience

CVE-2024-21927

Published
23 September 2025
Modified
15 April 2026
CVSS Score v3.1 5.0
Click a component to see what it means
Raw vectorCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:N/I:N/A:L
EPSS Score 0.0028 19th percentile
Risk Priority 38 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-2024-21927 is a medium-severity Improper Handling of Unexpected Data Type (CWE-241) vulnerability in Amd (inferred from references). Its CVSS base score is 5.0 (Medium).

Operationally, exploitation aligns with the MITRE ATT&CK technique Steganography (T1001.002); ranked at the 19th 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 SI-10 (Information Input Validation) — see the control section below for these in your framework.

EU & UK References

Vulnerability Data

Improper input validation in Satellite Management Controller (SMC) may allow an attacker with privileges to use certain special characters in manipulated Redfish® API commands, causing service processes like OpenBMC to crash and reset, potentially resulting in denial of service.

CWE(s)
CWE-241

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 OS Credential Dumping Credential Access
Adversaries may attempt to dump credentials to obtain account login and credential material, normally in the form of a hash or a clear text password.
attack.mitre.org →
T1003.003 NTDS Credential Access
Adversaries may attempt to access or create a copy of the Active Directory domain database in order to steal credential information, as well as obtain other information about domain members such as devices, users, and access rights.
attack.mitre.org →
T1003.006 DCSync Credential Access
Adversaries may attempt to access credentials and other sensitive information by abusing a Windows Domain Controller's application programming interface (API)(Citation: Microsoft DRSR Dec 2017) (Citation: Microsoft GetNCCChanges) (Citati…
attack.mitre.org →
T1003.007 Proc Filesystem Credential Access
Adversaries may gather credentials from the proc filesystem or `/proc`.
attack.mitre.org →
T1005 Data from Local System Collection
Adversaries may search local system sources, such as file systems, configuration files, local databases, virtual machine files, or process memory, to find files of interest and sensitive data prior to Exfiltration.
attack.mitre.org →
Derived from this CVE’s CWE(s) via the direct CWE→ATT&CK cross-walk.

CVEs Like This One

CVE-2023-28961Shared CWE-241
CVE-2025-7339Shared CWE-241
CVE-2026-73785Shared CWE-241
CVE-2024-0151Shared CWE-241
CVE-2025-66550Shared CWE-241
CVE-2025-2268Shared CWE-241
CVE-2025-63548Shared CWE-241
CVE-2024-21935Shared CWE-241
CVE-2026-47110Shared CWE-241
CVE-2024-37316Shared CWE-241

Affected Assets

Amd
—
inferred from references and description; NVD did not file a CPE for this CVE

Mitigating Controls

Mitigating Controls (NIST 800-53 r5) AI

SI-10 Information Input Validation good match

Input validation explicitly checks that supplied data matches expected types and rejects mismatches before they reach processing logic.

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 require proper input validation and type checking to prevent this weakness.

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.5.15 Access control partial match
removes
A.5.28 Collection of evidence partial match
removes
A.8.19 Installation of software on operational systems partial match
removes
A.8.25 Secure development life cycle partial match
blocks

A.8.25 mandates secure SDLC practices (secure coding guidelines, security requirements, checkpoints, testing, developer training) that reach a minority slice of CWE-241 instances (those introduced via missing type checks in first-party code) but leave most production defects untouched when practices are not exhaustive.

A.8.26 Application security requirements partial match
blocks

Application security requirements typically mandate strong input validation and type enforcement to prevent malformed data processing.

A.8.27 Secure system architecture and engineering principles partial match
blocks

A.8.27 mandates security-by-design principles (e.g. distrust external input, data validation/sanitization, secure architecture review against attack patterns) that reach type-handling defects in some but not all cases; a bounded remainder (e.g. custom parsing logic or third-party libraries) can still introduce the weakness and allow exploitation.

References