#VU118909 Improper initialization in UNISOC products - CVE-2025-31719

Vulnerability identifier: #VU118909

Vulnerability risk: Low

CVSSv4.0: 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

CVE-ID: CVE-2025-31719

CWE-ID: CWE-665

Exploitation vector: Local access

Exploit availability: No public exploit available

Vulnerable software:
SC7731E
SC9832E
SC9863A
T310
T606
T612
T616
T610
T618
T750
T765
T760
T770
T820
S8000
T8300
T9300

Software vendor:
UNISOC

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.

Install updates from vendor's website.

• https://www.unisoc.com/en/support/announcement/1987692028719517698