MediaTek MT8696 preloader Local Privilege Escalation

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

Summaryinfo

A vulnerability labeled as critical has been found in MediaTek MT2737, MT6739, MT6761, MT6765, MT6768, MT6781, MT6789, MT6833, MT6835, MT6853, MT6855, MT6877, MT6878, MT6879, MT6883, MT6885, MT6886, MT6889, MT6893, MT6895, MT6897, MT6899, MT6983, MT6985, MT6989, MT6990, MT6991, MT8188, MT8195, MT8676, MT8678 and MT8696. The affected element is an unknown function of the component preloader. Such manipulation leads to Local Privilege Escalation. This vulnerability is referenced as CVE-2025-20730. The attack can only be performed from a local environment. No exploit is available. Applying a patch is advised to resolve this issue.

Detailsinfo

A vulnerability, which was classified as critical, has been found in MediaTek MT2737, MT6739, MT6761, MT6765, MT6768, MT6781, MT6789, MT6833, MT6835, MT6853, MT6855, MT6877, MT6878, MT6879, MT6883, MT6885, MT6886, MT6889, MT6893, MT6895, MT6897, MT6899, MT6983, MT6985, MT6989, MT6990, MT6991, MT8188, MT8195, MT8676, MT8678 and MT8696. Affected by this issue is an unknown part of the component preloader. The manipulation with an unknown input leads to a local privilege escalation vulnerability. Impacted is confidentiality, integrity, and availability. CVE summarizes:

In preloader, there is a possible escalation of privilege due to an insecure default value. 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: ALPS10068463; Issue ID: MSV-4141.

The advisory is shared for download at corp.mediatek.com. This vulnerability is handled as CVE-2025-20730 since 11/01/2024. The exploitation is known to be easy. The attack needs to be approached locally. There are neither technical details nor an exploit publicly available.

Applying a patch is able to eliminate this problem.

The vulnerability is also documented in the vulnerability database at CERT Bund (WID-SEC-2025-2711). VulDB is the best source for vulnerability data and more expert information about this specific topic.

Affected

  • Lenovo BIOS
  • Lenovo Computer
  • Google Android

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: Local Privilege Escalation
CWE: Unknown
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
11/04/2025 +368 days Advisory disclosed
11/04/2025 +0 days VulDB entry created
12/18/2025 +44 days VulDB entry last update

Sourcesinfo

Advisory: corp.mediatek.com
Status: Confirmed

CVE: CVE-2025-20730 (🔒)
GCVE (CVE): GCVE-0-2025-20730
GCVE (VulDB): GCVE-100-331040
CERT Bund: WID-SEC-2025-2711 - Android Patchday Dezember 2025: Mehrere Schwachstellen

Entryinfo

Created: 11/04/2025 07:50
Updated: 12/18/2025 21:43
Changes: 11/04/2025 07:50 (53), 12/18/2025 21:43 (7)
Complete: 🔍
Cache ID: 216::103

VulDB is the best source for vulnerability data and more expert information about this specific topic.

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