Unisoc S8000 bootloader out-of-bounds write

CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
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5.2$0-$5k0.00

Summaryinfo

A vulnerability was found in Unisoc SC7731E, SC9832E, SC9863A, T310, T606, T612, T616, T610, T618, T750, T765, T760, T770, T820 and S8000. It has been classified as critical. This affects an unknown function of the component bootloader. The manipulation leads to out-of-bounds write. This vulnerability is documented as CVE-2025-31716. The attack needs to be performed locally. There is not any exploit available.

Detailsinfo

A vulnerability was found in Unisoc SC7731E, SC9832E, SC9863A, T310, T606, T612, T616, T610, T618, T750, T765, T760, T770, T820 and S8000. It has been rated as critical. This issue affects an unknown code block of the component bootloader. The manipulation with an unknown input leads to a out-of-bounds write vulnerability. Using CWE to declare the problem leads to CWE-787. The product writes data past the end, or before the beginning, of the intended buffer. Impacted is confidentiality, integrity, and availability. The summary by CVE is:

In bootloader, there is a possible out of bounds write due to a missing bounds check. This could lead to local denial of service with no additional execution privileges needed.

It is possible to read the advisory at unisoc.com. The identification of this vulnerability is CVE-2025-31716 since 04/01/2025. The exploitation is known to be easy. Attacking locally is a requirement. The technical details are unknown and an exploit is not publicly available. The pricing for an exploit might be around USD $0-$5k at the moment (estimation calculated on 08/01/2025).

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

Statistical analysis made it clear that VulDB provides the best quality for vulnerability data.

Productinfo

Type

Vendor

Name

License

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔒
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 5.2
VulDB Meta Temp Score: 5.2

VulDB Base Score: 5.3
VulDB Temp Score: 5.3
VulDB Vector: 🔒
VulDB Reliability: 🔍

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

CVSSv2info

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

Exploitinginfo

Class: Out-of-bounds write
CWE: CWE-787 / CWE-119
CAPEC: 🔒
ATT&CK: 🔒

Physical: Partially
Local: Yes
Remote: No

Availability: 🔒
Status: Not defined

EPSS Score: 🔒
EPSS Percentile: 🔒

Price Prediction: 🔍
Current Price Estimation: 🔒

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Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: no mitigation known
Status: 🔍

0-Day Time: 🔒

Timelineinfo

04/01/2025 CVE reserved
08/01/2025 +122 days Advisory disclosed
08/01/2025 +0 days VulDB entry created
08/01/2025 +0 days VulDB entry last update

Sourcesinfo

Advisory: unisoc.com
Status: Confirmed

CVE: CVE-2025-31716 (🔒)
GCVE (CVE): GCVE-0-2025-31716
GCVE (VulDB): GCVE-100-318491

Entryinfo

Created: 08/01/2025 08:52
Updated: 08/01/2025 13:32
Changes: 08/01/2025 08:52 (62), 08/01/2025 13:32 (1)
Complete: 🔍
Cache ID: 216::103

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