Is CVE-2026-20436 actively exploited?

CVE-2026-20436 has no public evidence of in-the-wild exploitation as of 2026-03-03.

What is the CVSS score for CVE-2026-20436?

CVE-2026-20436 has a CVSS score of 6.7 (MEDIUM severity). Vector: CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H.

How do I patch CVE-2026-20436?

Patch guidance is available from mediatek security advisories. CVEDatabase generates AI-assisted remediation guidance on demand for CVE-2026-20436.

CVE-2026-20436 - remediation guidance & executive summary

Description

In wlan STA driver, there is a possible escalation of privilege due to a missing bounds check. This could lead to local escalation of privilege if a malicious actor has already obtained the System privilege. User interaction is not needed for exploitation. Patch ID: WCNCR00473802; Issue ID: MSV-5970.

CVSS Metrics

Vector: CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H
Attack Vector: local
Complexity: low
Privileges: high
User Action: none
Scope: unchanged
Confidentiality: high
Integrity: high
Availability: high
Weaknesses: CWE-120

Metadata

Primary Vendor: MEDIATEK
Published: 3/2/2026
Last Modified: 3/3/2026
Source: NIST NVD
Note: Verify all details with official vendor sources before applying patches.

Affected Products

mediatek : nbiot_sdk

Remediation Guidance

Executive Summary

Cite this page

CVE-2026-20436. CVEDatabase.com. Retrieved 1 May 2026. https://cvedatabase.com/cve/CVE-2026-20436

View on NIST NVD

CVE-2026-20436 vulnerability