MediaTek MT6890/MT7615/MT7622/MT7663/MT7915 WLAN AP Driver 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 marked as critical has been reported in MediaTek MT6890, MT7615, MT7622, MT7663 and MT7915. The affected element is an unknown function of the component WLAN AP Driver. This manipulation causes out-of-bounds write. This vulnerability is tracked as CVE-2025-20681. The attack is restricted to local execution. No exploit exists. Applying a patch is the recommended action to fix this issue.

Detailsinfo

A vulnerability was found in MediaTek MT6890, MT7615, MT7622, MT7663 and MT7915. It has been declared as critical. Affected by this vulnerability is an unknown code of the component WLAN AP Driver. The manipulation with an unknown input leads to a out-of-bounds write vulnerability. The CWE definition for the vulnerability is CWE-787. The product writes data past the end, or before the beginning, of the intended buffer. As an impact it is known to affect confidentiality, integrity, and availability. The summary by CVE is:

In wlan AP driver, there is a possible out of bounds write due to an incorrect bounds check. This could lead to local escalation of privilege with User execution privileges needed. User interaction is not needed for exploitation. Patch ID: WCNCR00416936; Issue ID: MSV-3446.

The advisory is shared at corp.mediatek.com. This vulnerability is known as CVE-2025-20681 since 11/01/2024. The exploitation appears to be easy. An attack has to be approached locally. Neither technical details nor an exploit are publicly available.

Applying the patch MSV-3446 is able to eliminate this problem.

If you want to get the best quality for vulnerability data then you always have to consider VulDB.

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: MSV-3446

Timelineinfo

11/01/2024 CVE reserved
07/08/2025 +248 days Advisory disclosed
07/08/2025 +0 days VulDB entry created
07/08/2025 +0 days VulDB entry last update

Sourcesinfo

Advisory: MSV-3446
Status: Confirmed

CVE: CVE-2025-20681 (🔒)
GCVE (CVE): GCVE-0-2025-20681
GCVE (VulDB): GCVE-100-315277

Entryinfo

Created: 07/08/2025 07:31
Changes: 07/08/2025 07:31 (56)
Complete: 🔍
Cache ID: 216::103

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