CVE-2026-20456

CVSS 5.5 MEDIUMEPSS 0.1%CWE-787

Vexday Risk Score

13Low

SSVC decision (CISA)

Track

No exploitation signal → monitor

CVSS 5.5EPSS 0.1%KEV nãoPoC —Nuclei —Metasploit —Patch —

Lifecycle

01 Jun 2026Published on NVD

Recommendation: Monitor — no exploitation signal at the moment.

In wlan STA driver, there is a possible system crash due to a missing bounds check. This could lead to local denial of service with User execution privileges needed. User interaction is not needed for exploitation. Patch ID: WCNCR00480851; Issue ID: MSV-6338.

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

Affected products

MediaTek, Inc. · MediaTek chipset

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References

https://corp.mediatek.com/product-security-bulletin/June-2026