CVE-2024-21927 Vulnerability Analysis & Exploit Details

CVE-2024-21927
Vulnerability Scoring

5.0
/10
Medium Risk

The vulnerability CVE-2024-21927 could compromise system integrity but typically requires user interaction to be exploited.

Attack Complexity Details

  • Attack Complexity: Low
    Exploits can be performed without significant complexity or special conditions.
  • Attack Vector: Network
    Vulnerability is exploitable over a network without physical access.
  • Privileges Required: Low
    Some privileges are necessary to exploit the vulnerability.
  • Scope: Changed
    Successful exploitation can impact components beyond the vulnerable component.
  • User Interaction: None
    No user interaction is necessary for exploitation.

CVE-2024-21927 Details

Status: Received on 23 Sep 2025, 22:15 UTC

Published on: 23 Sep 2025, 22:15 UTC

CVSS Release: version 3

CVSS3 Source

psirt@amd.com

CVSS3 Type

Secondary

CVSS3 Vector

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:N/I:N/A:L

CVE-2024-21927 Vulnerability Summary

CVE-2024-21927: 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.

Assessing the Risk of CVE-2024-21927

Access Complexity Graph

The exploitability of CVE-2024-21927 depends on two key factors: attack complexity (the level of effort required to execute an exploit) and privileges required (the access level an attacker needs).

Exploitability Analysis for CVE-2024-21927

CVE-2024-21927 presents an accessible attack vector with minimal effort required. Restricting access controls and implementing security updates are critical to reducing exploitation risks.

Understanding AC and PR

A lower complexity and fewer privilege requirements make exploitation easier. Security teams should evaluate these aspects to determine the urgency of mitigation strategies, such as patch management and access control policies.

Attack Complexity (AC) measures the difficulty in executing an exploit. A high AC means that specific conditions must be met, making an attack more challenging, while a low AC means the vulnerability can be exploited with minimal effort.

Privileges Required (PR) determine the level of system access necessary for an attack. Vulnerabilities requiring no privileges are more accessible to attackers, whereas high privilege requirements limit exploitation to authorized users with elevated access.

CVSS Score Breakdown Chart

Above is the CVSS Sub-score Breakdown for CVE-2024-21927, illustrating how Base, Impact, and Exploitability factors combine to form the overall severity rating. A higher sub-score typically indicates a more severe or easier-to-exploit vulnerability.

CIA Impact Analysis

Below is the Impact Analysis for CVE-2024-21927, showing how Confidentiality, Integrity, and Availability might be affected if the vulnerability is exploited. Higher values usually signal greater potential damage.

  • Confidentiality: None
    CVE-2024-21927 has no significant impact on data confidentiality.
  • Integrity: None
    CVE-2024-21927 poses no threat to data integrity.
  • Availability: Low
    CVE-2024-21927 may slightly degrade system performance without fully affecting service availability.

CVE-2024-21927 References

External References

CWE Common Weakness Enumeration

CWE-241

CAPEC Common Attack Pattern Enumeration and Classification

  • Passing Local Filenames to Functions That Expect a URL CAPEC-48 This attack relies on client side code to access local files and resources instead of URLs. When the client browser is expecting a URL string, but instead receives a request for a local file, that execution is likely to occur in the browser process space with the browser's authority to local files. The attacker can send the results of this request to the local files out to a site that they control. This attack may be used to steal sensitive authentication data (either local or remote), or to gain system profile information to launch further attacks.

Protect Your Infrastructure against CVE-2024-21927: Combat Critical CVE Threats

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