CVE-2025-47366 in Snapdragon Auto
Summary
by MITRE • 02/02/2026
Cryptographic issue when a Trusted Zone with outdated code is triggered by a HLOS providing incorrect input.
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Analysis
by VulDB Data Team • 03/09/2026
The vulnerability identified as CVE-2025-47366 represents a significant cryptographic weakness within embedded systems architecture where a Trusted Zone component operates with outdated firmware or software code. This issue manifests when the Host Launch Environment or HLOS provides incorrect input parameters that trigger the vulnerable Trusted Zone functionality. The root cause lies in insufficient validation mechanisms within the Trusted Zone that fail to properly verify input integrity before processing cryptographic operations. This vulnerability falls under the broader category of cryptographic failures and can be mapped to CWE-310 - Cryptographic Issues, specifically addressing weaknesses in cryptographic implementation and validation. The Trusted Zone environment typically operates as a secure isolated area within a system where sensitive operations occur, making this vulnerability particularly concerning for security-critical applications.
The technical flaw exploits the communication gap between the HLOS and Trusted Zone components, where malformed or incorrect input data bypasses proper validation checks. When the Trusted Zone executes cryptographic operations with this corrupted input, it can lead to predictable cryptographic outputs, key exposure, or manipulation of security parameters. The vulnerability is particularly dangerous because it leverages the trust relationship between the HLOS and Trusted Zone, where the HLOS is expected to provide valid inputs to secure components. This represents a violation of the principle of least privilege and can be classified under ATT&CK technique T1552.001 - Credentials In Files, as the vulnerability may allow for extraction or manipulation of cryptographic keys or credentials. The outdated code within the Trusted Zone suggests that proper security updates or patches have not been applied, creating a persistent weakness in the system's attack surface.
The operational impact of CVE-2025-47366 extends beyond simple cryptographic failure, potentially enabling attackers to compromise the entire security architecture of the system. Successful exploitation could result in unauthorized access to encrypted data, key extraction, or manipulation of security-critical operations within the Trusted Zone. The vulnerability affects systems where the Trusted Zone is responsible for handling sensitive cryptographic operations such as secure boot processes, key derivation, or encryption/decryption of confidential information. Depending on the system architecture, this could lead to complete system compromise or unauthorized privilege escalation. The issue is particularly problematic in automotive, IoT, and mobile device environments where Trusted Zones are commonly used to protect sensitive operations and data.
Mitigation strategies for CVE-2025-47366 should focus on immediate firmware updates and code patching of the Trusted Zone components to address the outdated code vulnerabilities. Implementing robust input validation mechanisms within the Trusted Zone is essential to prevent incorrect HLOS input from triggering cryptographic failures. Security measures should include proper sanitization of all inputs before cryptographic operations, implementation of integrity checks, and regular security assessments of Trusted Zone components. Organizations should establish secure development practices and ensure that all Trusted Zone code undergoes proper security testing and validation. The mitigation approach should align with NIST SP 800-57 guidelines for cryptographic key management and follow ATT&CK mitigation strategies for preventing credential exposure and manipulation. Additionally, system administrators should implement monitoring mechanisms to detect anomalous behavior in Trusted Zone operations and establish procedures for rapid response to potential exploitation attempts. Regular security audits and vulnerability assessments should be conducted to identify and remediate similar issues in other system components.