CVE-2024-56434
Published: 08 January 2025
Summary
CVE-2024-56434 is a medium-severity Use After Free (CWE-416) vulnerability in Huawei Harmonyos. Its CVSS base score is 4.4 (Medium).
Operationally, exploitation aligns with the MITRE ATT&CK technique Application or System Exploitation (T1499.004); ranked at the 28.0th percentile by exploit likelihood (below the median); it is not currently listed in the CISA KEV catalog.
The strongest mitigations our analysis identified are NIST 800-53 SI-2 (Flaw Remediation) and SC-5 (Denial-of-service Protection).
Deeper analysis
CVE-2024-56434 is a Use-After-Free (UAF) vulnerability, classified under CWE-416, in the device node access module. Published on 2025-01-08, it carries a CVSS v3.1 base score of 4.4 (AV:L/AC:H/PR:L/UI:R/S:U/C:N/I:N/A:H) and affects Huawei devices.
Exploitation requires local access, high attack complexity, low privileges, and user interaction. A successful attack can cause service exceptions on the device, leading to a denial-of-service condition with high availability impact but no confidentiality or integrity effects.
Huawei's security bulletin at https://consumer.huawei.com/en/support/bulletin/2025/1/ provides details on the vulnerability, including recommended mitigations and patches.
EU & UK References
- 🇪🇺 ENISA EUVD: EUVD-2024-53143
Vulnerability details
UAF vulnerability in the device node access module Impact: Successful exploitation of this vulnerability may cause service exceptions of the device.
- CWE(s)
Related Threats
MITRE ATT&CK Enterprise TechniquesAI
Why these techniques?
UAF in local device module directly enables application/system exploitation for DoS (high availability impact only).
CVEs Like This One
Affected Assets
Mitigating Controls
Mitigating Controls (NIST 800-53 r5) AI
Directly mandates timely remediation of the UAF vulnerability via patching as detailed in the Huawei security bulletin.
Implements memory protection mechanisms like ASLR and DEP that increase the high attack complexity required to successfully exploit the UAF in the device node access module.
Provides denial-of-service protections tailored to mitigate service exceptions and high availability impact from UAF exploitation.