Local Denial of Service Vulnerability in MediaTek WLAN STA Driver
CVE-2026-20456

5.5MEDIUM

Key Information:

Vendor

MediaTek

Vendor
CVE Published:
1 June 2026

What is CVE-2026-20456?

The MediaTek WLAN STA driver is susceptible to a local denial of service vulnerability due to the absence of necessary bounds checks. This flaw may result in a system crash, requiring user execution privileges for exploitation. Notably, the vulnerability does not necessitate user interaction, allowing it to be exploited without any action from the end-user. It is essential for users to apply the patch WCNCR00480851 to mitigate this issue effectively.

Affected Version(s)

MediaTek chipset MT7902

MediaTek chipset MT7920

MediaTek chipset MT7921

References

CVSS V3.1

Score:
5.5
Severity:
MEDIUM
Confidentiality:
None
Integrity:
None
Availability:
None
Attack Vector:
Local
Attack Complexity:
Low
Privileges Required:
Low
User Interaction:
None
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

.