VDB-331814 · CVE-2025-31719 · GCVE-0-2025-31719

Unisoc T9300 TEE EcDSA

CVSS Meta Temp Score CVSS is a standardized scoring system to determine possibilities of attacks. The Temp Score considers temporal factors like disclosure, exploit and countermeasures. The unique Meta Score calculates the average score of different sources to provide a normalized scoring system.	Current Exploit Price (≈) Our analysts are monitoring exploit markets and are in contact with vulnerability brokers. The range indicates the observed or calculated exploit price to be seen on exploit markets. A good indicator to understand the monetary effort required for and the popularity of an attack.	CTI Interest Score Our Cyber Threat Intelligence team is monitoring different web sites, mailing lists, exploit markets and social media networks. The CTI Interest Score identifies the interest of attackers and the security community for this specific vulnerability in real-time. A high score indicates an elevated risk to be targeted for this vulnerability.
4.3	$0-$5k	0.00

Summaryinfo

A vulnerability classified as problematic was found in Unisoc SC7731E, SC9832E, SC9863A, T310, T606, T612, T616, T610, T618, T750, T765, T760, T770, T820, S8000, T8300 and T9300. Affected is an unknown function of the component TEE EcDSA Handler. Such manipulation leads to an unknown weakness. This vulnerability is traded as CVE-2025-31719. An attack has to be approached locally. There is no exploit available.

Detailsinfo

A vulnerability, which was classified as problematic, has been found in Unisoc SC7731E, SC9832E, SC9863A, T310, T606, T612, T616, T610, T618, T750, T765, T760, T770, T820, S8000, T8300 and T9300. Affected by this issue is an unknown function of the component TEE EcDSA Handler. Impacted is integrity, and availability. CVE summarizes:

In TEE EcDSA algorithm, there is a possible memory consistency issue. This could lead to generated incorrect signature results with low probability.

The advisory is available at unisoc.com. This vulnerability is handled as CVE-2025-31719 since 04/01/2025. The exploitation is known to be difficult. Local access is required to approach this attack. The technical details are unknown and an exploit is not available.

There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.

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Productinfo

Type

Chip Software

Vendor

Unisoc

Name

License

commercial

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔒
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 4.3
VulDB Meta Temp Score: 4.3

VulDB Base Score: 3.6
VulDB Temp Score: 3.6
VulDB Vector: 🔒
VulDB Reliability: 🔍

CNA Base Score: 5.1
CNA Vector (Unisoc): 🔒

CVSSv2info

AV	AC	Au	C	I	A
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💳	💳	💳	💳	💳	💳
💳	💳	💳	💳	💳	💳

Vector	Complexity	Authentication	Confidentiality	Integrity	Availability
Unlock	Unlock	Unlock	Unlock	Unlock	Unlock
Unlock	Unlock	Unlock	Unlock	Unlock	Unlock
Unlock	Unlock	Unlock	Unlock	Unlock	Unlock

VulDB Base Score: 🔒
VulDB Temp Score: 🔒
VulDB Reliability: 🔍

Exploitinginfo

Class: Unknown
CWE: Unknown
CAPEC: 🔒
ATT&CK: 🔒

Physical: Partially
Local: Yes
Remote: No

Availability: 🔒
Status: Not defined

EPSS Score: 🔒
EPSS Percentile: 🔒

Price Prediction: 🔍
Current Price Estimation: 🔒

0-Day	Unlock	Unlock	Unlock	Unlock
Today	Unlock	Unlock	Unlock	Unlock

Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: no mitigation known
Status: 🔍

0-Day Time: 🔒

Timelineinfo

04/01/2025 CVE reserved
11/11/2025 +224 days Advisory disclosed
11/11/2025 +0 days VulDB entry created
11/11/2025 +0 days VulDB entry last update

Sourcesinfo

Advisory: unisoc.com
Status: Confirmed

CVE: CVE-2025-31719 (🔒)
GCVE (CVE): GCVE-0-2025-31719
GCVE (VulDB): GCVE-100-331814

Entryinfo

Created: 11/11/2025 07:53
Changes: 11/11/2025 07:53 (60)
Complete: 🔍
Cache ID: 216::103