SB2025120163 - Improper initialization in TEE EcDSA algorithm implementation on Unisoc chipsets
Published: December 1, 2025
Security Bulletin ID
SB2025120163
CSH Severity
Low
Patch available
YES
Number of vulnerabilities
1
Exploitation vector
Local access
Highest impact
Data manipulation
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 1 vulnerability.
1) Improper initialization (CVE-ID: CVE-2025-31719)
CWE-ID: CWE-665 - Improper Initialization
CVSSv4: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:L/VA:L/SC:N/SI:N/SA:N/E:U/U:Clear
The vulnerability allows a local application to bypass implemented security restrictions.
The vulnerability exists due to improper initialization in TEE EcDSA algorithm, which results in generation of incorrect signature results with low probability. A local application can bypass implemented security restrictions.
Remediation
Install update from vendor's website.