CVE-2026-20446

low-risk

Published 2026-04-07

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.

Do I need to act?

0.02% chance of exploitation

EPSS score — low exploit probability

Not on CISA KEV list

No confirmed active exploitation reported to CISA

Patch status unknown

Check vendor advisories for fix availability and mitigation guidance

CVSS 4.3/10 Medium

PHYSICAL / LOW complexity

Affected Products (1)

Mt6813 Firmware

Affected Vendors

Mediatek

References (1)

Vendor Advisory https://corp.mediatek.com/product-security-bulletin/April-2026

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low-risk

Severity 15/34 · Moderate

Exploitability 0/34 · Minimal

Exposure 5/34 · Minimal