Medium severity · published Aug 3, 2026
CVE-2026-20471
In DA, there is a possible out of bounds write due to a missing bounds check
4.6
CVSS
0.2%
EPSS
No
On KEV
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.
CVSS vector
CVSS:3.1/AV:P/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Attack vector
Physical
Complexity
Low
Privileges
None
User interaction
None
Confidentiality
None
Integrity
None
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.2% · higher than 13% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
MC
MediaTek chipset · MediaTek, Inc.
MT2735; MT2737; MT6813; MT6880; MT6890; MT6986; +2 more · source: vendor
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-20471
CVE.org
https://www.cve.org/CVERecord?id=CVE-2026-20471
www.mediatek.com
https://www.mediatek.com/product-security-bulletin/August-2026
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