Improper initialization in TEE EcDSA algorithm implementation on Unisoc chipsets
| Risk | Low |
| Patch available | YES |
| Number of vulnerabilities | 1 |
| CVE-ID | CVE-2025-31719 |
| CWE-ID | CWE-665 |
| Exploitation vector | Local |
| Public exploit | N/A |
| Vulnerable software |
SC7731E Mobile applications / Mobile firmware & hardware SC9832E Mobile applications / Mobile firmware & hardware SC9863A Mobile applications / Mobile firmware & hardware T310 Mobile applications / Mobile firmware & hardware T606 Mobile applications / Mobile firmware & hardware T612 Mobile applications / Mobile firmware & hardware T616 Mobile applications / Mobile firmware & hardware T610 Mobile applications / Mobile firmware & hardware T618 Mobile applications / Mobile firmware & hardware T750 Mobile applications / Mobile firmware & hardware T765 Mobile applications / Mobile firmware & hardware T760 Mobile applications / Mobile firmware & hardware T770 Mobile applications / Mobile firmware & hardware T820 Mobile applications / Mobile firmware & hardware S8000 Mobile applications / Mobile firmware & hardware T8300 Mobile applications / Mobile firmware & hardware T9300 Mobile applications / Mobile firmware & hardware |
| Vendor | UNISOC |
Security Bulletin
This security bulletin contains one low risk vulnerability.
1) Improper initialization
EUVDB-ID: #VU118909
Risk: Low
CVSSv4.0: 1.1 [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 - Improper Initialization
Exploit availability: No
DescriptionThe 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.
MitigationInstall updates from vendor's website.
Vulnerable software versionsSC7731E: All versions
SC9832E: All versions
SC9863A: All versions
T310: All versions
T606: All versions
T612: All versions
T616: All versions
T610: All versions
T618: All versions
T750: All versions
T765: All versions
T760: All versions
T770: All versions
T820: All versions
S8000: All versions
T8300: All versions
T9300: All versions
CPE2.3- cpe:2.3:a:unisoc:sc7731e:*:*:*:*:*:*:*:*
- cpe:2.3:a:unisoc:sc9832e:*:*:*:*:*:*:*:*
- cpe:2.3:a:unisoc:sc9863a:*:*:*:*:*:*:*:*
- cpe:2.3:a:unisoc:t310:*:*:*:*:*:*:*:*
- cpe:2.3:a:unisoc:t606:*:*:*:*:*:*:*:*
- cpe:2.3:a:unisoc:t612:*:*:*:*:*:*:*:*
- cpe:2.3:a:unisoc:t616:*:*:*:*:*:*:*:*
- cpe:2.3:a:unisoc:t610:*:*:*:*:*:*:*:*
- cpe:2.3:a:unisoc:t618:*:*:*:*:*:*:*:*
- cpe:2.3:a:unisoc:t750:*:*:*:*:*:*:*:*
- cpe:2.3:a:unisoc:t765:*:*:*:*:*:*:*:*
- cpe:2.3:a:unisoc:t760:*:*:*:*:*:*:*:*
- cpe:2.3:a:unisoc:t770:*:*:*:*:*:*:*:*
- cpe:2.3:a:unisoc:t820:*:*:*:*:*:*:*:*
- cpe:2.3:a:unisoc:s8000:*:*:*:*:*:*:*:*
- cpe:2.3:a:unisoc:t8300:*:*:*:*:*:*:*:*
- cpe:2.3:a:unisoc:t9300:*:*:*:*:*:*:*:*
https://www.unisoc.com/en/support/announcement/1987692028719517698
Q & A
Can this vulnerability be exploited remotely?
No. This vulnerability can be exploited locally. The attacker should have authentication credentials and successfully authenticate on the system.
Is there known malware, which exploits this vulnerability?
No. We are not aware of malware exploiting this vulnerability.
