CVE-2024-11864
Published: 14 January 2025
Summary
CVE-2024-11864 is a high-severity Improper Handling of Exceptional Conditions (CWE-755) vulnerability in Arm Scp Firmware. Its CVSS base score is 7.5 (High).
Operationally, ranked in the top 38.2% of CVEs by exploit likelihood; it is not currently listed in the CISA KEV catalog.
The strongest mitigations our analysis identified are NIST 800-53 SI-10 (Information Input Validation) and SI-11 (Error Handling).
Threat & Defense at a Glance
Threat & Defense Details
Mitigating Controls (NIST 800-53 r5)AI
SI-11 directly addresses the CWE-755 improper handling of exceptional conditions in SCP firmware that leads to Usage Fault crashes from crafted SCMI messages.
SI-10 enforces validation of SCMI message inputs to block specifically crafted messages that trigger the SCP crash.
SI-2 requires timely flaw remediation by applying patches to SCP-Firmware versions beyond 2.15.0 as advised in the Arm Security Center.
NVD Description
Specifically crafted SCMI messages sent to an SCP running SCP-Firmware release versions up to and including 2.15.0 may lead to a Usage Fault and crash the SCP
Deeper analysisAI
CVE-2024-11864 affects the System Control Processor (SCP) in devices running SCP-Firmware release versions up to and including 2.15.0. The vulnerability arises from specifically crafted SCMI (System Control Processor Management Interface) messages that trigger a Usage Fault, causing the SCP to crash. It is rated with a CVSS v3.1 base score of 7.5 (AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H) and is associated with CWE-755 (Improper Handling of Exceptional Conditions).
Attackers can exploit this vulnerability remotely over the network with low attack complexity, requiring no authentication privileges, user interaction, or special conditions. Any unauthenticated remote actor capable of sending SCMI messages to the affected SCP can induce a denial-of-service condition by crashing the processor, disrupting availability without impacting confidentiality or integrity.
Mitigation details and patches are documented in the Arm Security Center advisory for SCP-Firmware vulnerabilities CVE-2024-11863 and CVE-2024-11864, available at https://developer.arm.com/Arm%20Security%20Center/SCP-Firmware%20Vulnerability%20CVE-2024-11863-11864. Security practitioners should consult this reference for upgrade guidance to resolved versions beyond 2.15.0.
Details
- CWE(s)