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HIGHCVE-2026-20423Published Modified CNA MediaTek

CVE-2026-20423: In wlan STA driver, there is a possible out of bounds write due to a missing bounds check

In wlan STA driver, there is a possible out of bounds write due to a missing bounds check. This could lead to local escalation of privilege with User execution privileges needed. User interaction is not needed for exploitation. Patch ID: WCNCR00465314; Issue ID: MSV-4956.

Metrics

CVSS v3.1
7.8
Severity
HIGH
Fixed in
—
Affected Products
1
Affected packages
  • MediaTek, Inc. / MediaTek chipset
    MT7902 · MT7920 · MT7921 · MT7922 · MT7925 · MT7927
CVSS Vector
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
References
CVE-2026-20423: In wlan STA driver, there is a possible out of bounds write due to a missing bounds check | HarborGuard CVE