CVE-2026-20471 Details
Description
In DA, there is a possible out of bounds write due to a missing bounds check. This could lead to local denial of service, if an attacker has physical access to the device, with no additional execution privileges needed. User interaction is not needed for exploitation. Patch ID: ALPS10991588 (Note: For MT6880, MT6890, MT6990, MT6988, MT6986, MT6813) / AUTO00851171 (Note: For MT2735, MT2737); Issue ID: MSV-7790.
A vulnerability allowing out-of-bounds write operations has been identified in the DA component of certain MediaTek chipsets. This issue arises from a missing bounds check, which could lead to local denial-of-service conditions. The vulnerability requires physical access to the device but does not need any additional execution privileges. User interaction is also not required for exploitation.
Instructions for applying the patch can be obtained from the MediaTek Product Security Bulletin or through the MediaTek contact person for device OEMs.
Metrics
CVSS 4.0 Severity and Vector Strings:
VolerionCVSS 3.x Severity and Vector Strings:
No data available for CVSS Version 2.0 on this CVE.
Volerion
Assessed Aug 3, 2026CISA-ADP
Assessed Aug 3, 2026References to Advisories, Solutions, and Tools
By selecting these links, you will be leaving this site. These are references gathered from the official CVE record and are not endorsed by Volerion.
| URL | Source(s) | Tag(s) |
|---|---|---|
| https://www.mediatek.com/product-security-bulletin/August-2026 | [email protected] | AdvisoryBundleVendor |
Weakness Enumeration
| CWE-ID | CWE Name | Source |
|---|---|---|
| CWE-787 | Out-of-bounds Write | [email protected] |
Affected Products
| Product | Versions |
|---|---|
| MediaTek MT2735 | All versions |
CPE
Remediation
| |
| MediaTek MT2737 | All versions |
CPE
Remediation
| |
| MediaTek MT6813 | All versions |
CPE
Remediation
| |
| MediaTek MT6880 | All versions |
CPE
Remediation
| |
| MediaTek MT6890 | All versions |
CPE
Remediation
| |
| MediaTek MT6986 | All versions |
CPE
Remediation
| |
| MediaTek MT6988 | All versions |
CPE
Remediation
| |
| MediaTek MT6990 | All versions |
CPE
Remediation
| |
Change History
2 change records found show changes
| Date | Action | Recorded By |
|---|---|---|
| Aug 3, 2026 | CVE Modified | CISA-ADP |
| Aug 3, 2026 | New CVE Received | [email protected] |