MediaTek MT7902/MT7921/MT7922/MT7925/MT7927 Bluetooth Driver null pointer dereference

CVSS Meta Temp Score
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CTI Interest Score
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5.3$0-$5k0.00

Summaryinfo

A vulnerability identified as problematic has been detected in MediaTek MT7902, MT7921, MT7922, MT7925 and MT7927. Affected by this issue is some unknown functionality of the component Bluetooth Driver. This manipulation causes null pointer dereference. This vulnerability is registered as CVE-2025-20677. The attack needs to be launched locally. No exploit is available. To fix this issue, it is recommended to deploy a patch.

Detailsinfo

A vulnerability was found in MediaTek MT7902, MT7921, MT7922, MT7925 and MT7927. It has been declared as problematic. Affected by this vulnerability is some unknown functionality of the component Bluetooth Driver. The manipulation with an unknown input leads to a null pointer dereference vulnerability. The CWE definition for the vulnerability is CWE-476. A NULL pointer dereference occurs when the application dereferences a pointer that it expects to be valid, but is NULL, typically causing a crash or exit. As an impact it is known to affect availability. The summary by CVE is:

In Bluetooth driver, there is a possible system crash due to an uncaught exception. This could lead to local denial of service with User execution privileges needed. User interaction is not needed for exploitation. Patch ID: WCNCR00412256; Issue ID: MSV-3284.

It is possible to read the advisory at corp.mediatek.com. This vulnerability is known as CVE-2025-20677 since 11/01/2024. The exploitation appears to be easy. Attacking locally is a requirement. The technical details are unknown and an exploit is not publicly available.

Applying the patch MSV-3284 is able to eliminate this problem.

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: 5.5
VulDB Meta Temp Score: 5.3

VulDB Base Score: 5.5
VulDB Temp Score: 5.3
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv2info

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

Exploitinginfo

Class: Null pointer dereference
CWE: CWE-476 / CWE-404
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-3284

Timelineinfo

11/01/2024 🔍
06/02/2025 +212 days 🔍
06/02/2025 +0 days 🔍
06/03/2025 +1 days 🔍

Sourcesinfo

Advisory: MSV-3284
Status: Confirmed

CVE: CVE-2025-20677 (🔍)
GCVE (CVE): GCVE-0-2025-20677
GCVE (VulDB): GCVE-100-310795

Entryinfo

Created: 06/02/2025 08:21
Updated: 06/03/2025 06:18
Changes: 06/02/2025 08:21 (56), 06/03/2025 06:18 (1)
Complete: 🔍
Cache ID: 216::103

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