MediaTek MT8793 imgsensor 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 classified as critical was found in MediaTek MT6886, MT6897, MT6899, MT6985, MT6989, MT6991, MT8195, MT8196, MT8370, MT8390, MT8395, MT8792 and MT8793. This impacts an unknown function of the component imgsensor. Executing a manipulation can lead to out-of-bounds write. This vulnerability is handled as CVE-2025-20721. It is possible to launch the attack on the local host. There is not any exploit available. Applying a patch is advised to resolve this issue.

Detailsinfo

A vulnerability has been found in MediaTek MT6886, MT6897, MT6899, MT6985, MT6989, MT6991, MT8195, MT8196, MT8370, MT8390, MT8395, MT8792 and MT8793 and classified as critical. This vulnerability affects an unknown function of the component imgsensor. 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. CVE summarizes:

In imgsensor, there is a possible out of bounds write due to a missing 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: ALPS10089545; Issue ID: MSV-4279.

The advisory is shared for download at corp.mediatek.com. This vulnerability was named CVE-2025-20721 since 11/01/2024. The exploitation appears 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.

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

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-2025-20721 (🔒)
GCVE (CVE): GCVE-0-2025-20721
GCVE (VulDB): GCVE-100-328216

Entryinfo

Created: 10/14/2025 12:03
Changes: 10/14/2025 12:03 (54)
Complete: 🔍
Cache ID: 216::103

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