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CVE-2026-20423

Quick assessment

Affected
MediaTek, Inc. MediaTek chipset
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

MediaTek Chipsets是中国联发科（MediaTek）公司的一系列芯片。 MediaTek Chipsets存在安全漏洞，该漏洞源于缺少边界检查导致越界写入，可能导致本地权限提升。

AI Predicted 7.8 Difficulty: Moderate EPSS 0.12% · P2
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I. Basic Information for CVE-2026-20423

Vulnerability Information
Have questions about the vulnerability? See if Shenlong's analysis helps!
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Vulnerability Title
N/A
Source: CVE Program / CVE List V5
Vulnerability Description
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.
Source: CVE Program / CVE List V5
CVSS Information
N/A
Source: CVE Program / CVE List V5
Vulnerability Type
暴露危险的方法或函数
Source: CVE Program / CVE List V5
Vulnerability Title
MediaTek Chipsets 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
MediaTek Chipsets是中国联发科（MediaTek）公司的一系列芯片。 MediaTek Chipsets存在安全漏洞，该漏洞源于缺少边界检查导致越界写入，可能导致本地权限提升。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

Vendor Product Affected Versions CPE Subscribe
MediaTek, Inc. MediaTek chipset MT7902 -

II. Public POCs for CVE-2026-20423

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III. Intelligence Information for CVE-2026-20423

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Vendor Advisories for CVE-2026-20423 (1)

Same Patch Batch · MediaTek, Inc. · 2026-03-02 · 21 CVEs total

CVE-2026-20438 MediaTek Chipsets 安全漏洞
CVE-2026-20425 MediaTek Chipsets 安全漏洞
CVE-2026-20426 MediaTek Chipsets 安全漏洞
CVE-2026-20427 MediaTek Chipsets 安全漏洞
CVE-2026-20428 MediaTek Chipsets 安全漏洞
CVE-2026-20430 MediaTek Chipsets 安全漏洞
CVE-2026-20434 MediaTek Chipsets 安全漏洞
CVE-2026-20435 MediaTek Chipsets 安全漏洞
CVE-2026-20436 MediaTek Chipsets 安全漏洞
CVE-2026-20437 MediaTek Chipsets 安全漏洞
CVE-2026-20416 MediaTek Chipsets 安全漏洞
CVE-2026-20439 MediaTek Chipsets 安全漏洞
CVE-2026-20440 MediaTek Chipsets 安全漏洞
CVE-2026-20441 MediaTek Chipsets 安全漏洞
CVE-2026-20442 MediaTek Chipsets 安全漏洞
CVE-2026-20443 MediaTek Chipsets 安全漏洞
CVE-2026-20444 MediaTek Chipsets 安全漏洞
CVE-2026-20424 MediaTek Chipsets 安全漏洞
CVE-2026-20429 MediaTek Chipsets 安全漏洞
CVE-2026-20445 MediaTek Chipsets 安全漏洞

IV. Related Vulnerabilities

Same product: MediaTek chipset
Same vendor: MediaTek, Inc.
Same weakness: CWE-749

V. Comments for CVE-2026-20423

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