Is CVE-2026-20446 actively exploited?

CVE-2026-20446 has no public evidence of in-the-wild exploitation as of 2026-04-07.

What is the CVSS score for CVE-2026-20446?

CVE-2026-20446 has a CVSS score of 4.3 (MEDIUM severity). Vector: CVSS:3.1/AV:P/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H.

How do I patch CVE-2026-20446?

Patch guidance is available from mediatek security advisories. CVEDatabase generates AI-assisted remediation guidance on demand for CVE-2026-20446.

Which products are affected by CVE-2026-20446?

1 product: mediatek mt6813 firmware.

CVE-2026-20446 - remediation guidance & executive summary

Description

In sec boot, there is a possible out of bounds write due to an integer overflow. This could lead to local denial of service, if an attacker has physical access to the device, with User execution privileges needed. User interaction is not needed for exploitation. Patch ID: ALPS09963054; Issue ID: MSV-3899.

CVSS Metrics

Vector: CVSS:3.1/AV:P/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Attack Vector: physical
Complexity: low
Privileges: low
User Action: none
Scope: unchanged
Confidentiality: none
Integrity: none
Availability: high
Weaknesses: CWE-787 · Out-of-bounds Write CWE-190 · Integer Overflow

Metadata

Primary Vendor: MEDIATEK
Published: 4/7/2026
Last Modified: 4/7/2026
Source: NIST NVD
Note: Verify all details with official vendor sources before applying patches.

Affected Products

mediatek : mt6813_firmware

Remediation Guidance

Executive Summary

Cite this page

CVE-2026-20446. CVEDatabase.com. Retrieved 1 May 2026. https://cvedatabase.com/cve/CVE-2026-20446

View on NIST NVD

CVE-2026-20446 vulnerability