CVE-2026-20407 — Out-of-bounds Write in Nbiot SDK

CWE-787 — Out-of-bounds Write3 documents3 sources
Severity
9.3CRITICALNVD
EPSS
0.0%
top 99.27%
CISA KEV
Not in KEV
Exploit
No known exploits
Affected products
2
Mediatek Nbiot SDKMediatek INC Mediatek Chipset
Timeline
PublishedFeb 2

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 with User execution privileges needed. User interaction is not needed for exploitation. Patch ID: WCNCR00464377; Issue ID: MSV-4905.

CVSS vector

CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:HExploitability: 2.5 | Impact: 6.0

Affected Packages2 packages

▶CVEListV5mediatek_inc/mediatek_chipset6 versions+5

🔴Vulnerability Details

2
GHSA
GHSA-84w3-v7pc-5h8q: In wlan STA driver, there is a possible escalation of privilege due to a missing bounds check↗2026-02-02
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CVEList
CVE-2026-20407: In wlan STA driver, there is a possible escalation of privilege due to a missing bounds check↗2026-02-02
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CVE-2026-20407 — Out-of-bounds Write in Nbiot SDK | cvebase