MediaTek MT2718/MT6899/MT6991/MT8678/MT8793 MAE out-of-bounds write

CVSS Meta Temp Score
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CTI Interest Score
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6.6$0-$5k0.00

Summaryinfo

A vulnerability identified as critical has been detected in MediaTek MT2718, MT6899, MT6991, MT8678 and MT8793. This vulnerability affects unknown code of the component MAE. The manipulation leads to out-of-bounds write. This vulnerability is traded as CVE-2026-20441. An attack has to be approached locally. There is no exploit available. It is suggested to install a patch to address this issue.

Detailsinfo

A vulnerability, which was classified as critical, has been found in MediaTek MT2718, MT6899, MT6991, MT8678 and MT8793. This issue affects some unknown functionality of the component MAE. The manipulation with an unknown input leads to a out-of-bounds write vulnerability. Using CWE to declare the problem leads to CWE-787. The product writes data past the end, or before the beginning, of the intended buffer. Impacted is confidentiality, integrity, and availability. The summary by CVE is:

In MAE, 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: ALPS10432500; Issue ID: MSV-5803.

The advisory is shared at corp.mediatek.com. The identification of this vulnerability is CVE-2026-20441 since 11/03/2025. The exploitation is known to be easy. An attack has to be approached locally. Additional levels of successful authentication are needed for exploitation. Neither technical details nor an exploit are publicly available.

Applying a patch is able to eliminate this problem.

Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

Productinfo

Type

Vendor

Name

License

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔒
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 6.7
VulDB Meta Temp Score: 6.6

VulDB Base Score: 6.7
VulDB Temp Score: 6.4
VulDB Vector: 🔒
VulDB Reliability: 🔍

ADP CISA Base Score: 6.7
ADP CISA Vector: 🔒

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

11/03/2025 CVE reserved
03/02/2026 +119 days Advisory disclosed
03/02/2026 +0 days VulDB entry created
03/04/2026 +1 days VulDB entry last update

Sourcesinfo

Advisory: corp.mediatek.com
Status: Confirmed

CVE: CVE-2026-20441 (🔒)
GCVE (CVE): GCVE-0-2026-20441
GCVE (VulDB): GCVE-100-348329

Entryinfo

Created: 03/02/2026 10:17
Updated: 03/04/2026 00:00
Changes: 03/02/2026 10:17 (54), 03/04/2026 00:00 (10)
Complete: 🔍
Cache ID: 216::103

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