Is CVE-2026-20446 actively exploited?

No active exploitation of CVE-2026-20446 has been confirmed so far. Continue monitoring, as exploit status can change.

Can CVE-2026-20446 be exploited remotely?

No. CVE-2026-20446 requires physical access to exploit.

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

CVE-2026-20446 has a CVSS score of 4.3 (MEDIUM).

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MEDIUM

CVE-2026-20446

CWE-787Published: April 7, 2026· Updated: Apr 7, 2026

4.3

CVSS v3.1

EPSS:0.02%probability of exploitation in 30 daysPercentile:6.1th

Official 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.

NVD Source

Technical Analysis

CVE-2026-20446 requires local access, meaning attackers must already have a foothold on the target system.

Exploitation requires low privileges, which limits the exposure to scenarios where an attacker has already gained initial access.

A successful exploit results in availability disruption (denial of service), with a CVSS base score of 4.3.

From a weakness classification perspective (CWE-787): Out-of-bounds write vulnerabilities can lead to data corruption, crashes, or arbitrary code execution.