MediaTek MT7986 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, MT7915, MT7916, MT7981 and MT7986. The affected element is an unknown function of the component WLAN AP Driver. This manipulation causes out-of-bounds write. This vulnerability appears as CVE-2025-20716. The attack requires local access. There is no available exploit. Applying a patch is the recommended action to fix this issue.

Detailsinfo

A vulnerability classified as critical was found in MediaTek MT6890, MT7615, MT7622, MT7663, MT7915, MT7916, MT7981 and MT7986. 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 if a malicious actor has already obtained the System privilege. User interaction is not needed for exploitation. Patch ID: WCNCR00421149; Issue ID: MSV-3728.

The advisory is shared at corp.mediatek.com. This vulnerability is known as CVE-2025-20716 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 a patch 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: 🔒

Timelineinfo

11/01/2024 CVE reserved
10/14/2025 +346 days Advisory disclosed
10/14/2025 +0 days VulDB entry created
10/14/2025 +0 days VulDB entry last update

Sourcesinfo

Advisory: corp.mediatek.com
Status: Confirmed

CVE: CVE-2025-20716 (🔒)
GCVE (CVE): GCVE-0-2025-20716
GCVE (VulDB): GCVE-100-328213

Entryinfo

Created: 10/14/2025 12:03
Changes: 10/14/2025 12:03 (55)
Complete: 🔍
Cache ID: 216::103

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