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HIGHCVE-2026-20408Published Modified CNA MediaTek

CVE-2026-20408: In wlan, there is a possible out of bounds write due to a heap buffer overflow

In wlan, there is a possible out of bounds write due to a heap buffer overflow. This could lead to remote (proximal/adjacent) escalation of privilege with no additional execution privileges needed. User interaction is not needed for exploitation. Patch ID: WCNCR00461651; Issue ID: MSV-4758.

Metrics

CVSS v3.1
8.8
Severity
HIGH
Fixed in
—
Affected Products
1
Affected packages
  • MediaTek, Inc. / MediaTek chipset
    MT6890 · MT7615 · MT7915 · MT7916 · MT7981 · MT7986
CVSS Vector
CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
References
CVE-2026-20408: In wlan, there is a possible out of bounds write due to a heap buffer overflow | HarborGuard CVE