MediaTek MT8678 thermal out-of-bounds write

CVSS Meta Temp Score
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CTI Interest Score
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7.5$0-$5k0.00

Summaryinfo

A vulnerability described as critical has been identified in MediaTek MT2718, MT6878, MT6897, MT6899, MT6989, MT6991, MT8196, MT8391, MT8676 and MT8678. This impacts an unknown function of the component thermal. Such manipulation leads to out-of-bounds write. This vulnerability is uniquely identified as CVE-2025-20671. Local access is required to approach this attack. No exploit exists. It is best practice to apply a patch to resolve this issue.

Detailsinfo

A vulnerability was found in MediaTek MT2718, MT6878, MT6897, MT6899, MT6989, MT6991, MT8196, MT8391, MT8676 and MT8678 and classified as critical. Affected by this issue is an unknown code block of the component thermal. 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. CVE summarizes:

In thermal, there is a possible out of bounds write due to a race condition. This could lead to local escalation of privilege if a malicious actor has already obtained the System privilege. User interaction is not needed for exploitation. Patch ID: ALPS09698599; Issue ID: MSV-3228.

The advisory is available at corp.mediatek.com. This vulnerability is handled as CVE-2025-20671 since 11/01/2024. The exploitation is known to be easy. Local access is required to approach this attack. The technical details are unknown and an exploit is not available.

Applying the patch ALPS09698599 is able to eliminate this problem.

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Productinfo

Type

Vendor

Name

License

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔒
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 7.8
VulDB Meta Temp Score: 7.5

VulDB Base Score: 7.8
VulDB Temp Score: 7.5
VulDB Vector: 🔒
VulDB Reliability: 🔍

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: Patch
Status: 🔍

0-Day Time: 🔒

Patch: ALPS09698599

Timelineinfo

11/01/2024 CVE reserved
05/05/2025 +184 days Advisory disclosed
05/05/2025 +0 days VulDB entry created
05/05/2025 +0 days VulDB entry last update

Sourcesinfo

Advisory: MSV-3228
Status: Confirmed

CVE: CVE-2025-20671 (🔒)
GCVE (CVE): GCVE-0-2025-20671
GCVE (VulDB): GCVE-100-307382

Entryinfo

Created: 05/05/2025 06:53
Updated: 05/05/2025 13:21
Changes: 05/05/2025 06:53 (56), 05/05/2025 13:21 (1)
Complete: 🔍
Cache ID: 216:C57:103

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