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I. Basic Information for CVE-2026-20404
Vulnerability Information
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Vulnerability Title
N/A
Source: NVD (National Vulnerability Database)
Vulnerability Description
In Modem, there is a possible system crash due to improper input validation. This could lead to remote denial of service, if a UE has connected to a rogue base station controlled by the attacker, with no additional execution privileges needed. User interaction is not needed for exploitation. Patch ID: MOLY01689248; Issue ID: MSV-4837.
Source: NVD (National Vulnerability Database)
CVSS Information
N/A
Source: NVD (National Vulnerability Database)
Vulnerability Type
跨界内存写
Source: NVD (National Vulnerability Database)
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，该漏洞源于组件Modem输入验证不当，可能导致远程拒绝服务攻击。
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
VendorProductAffected VersionsCPESubscribe
MediaTek, Inc.MediaTek chipset MT2735 -
II. Public POCs for CVE-2026-20404
#POC DescriptionSource LinkShenlong Link
1A MediaTek modem input validation issue can cause a system crash (remote DoS) when a UE connects to a rogue base station controlled by an attacker with no user interaction required.https://github.com/George0Papasotiriou/CVE-2026-20404-MediaTek-modem-remote-DoS-rogue-base-station-scenario-POC Details
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III. Intelligence Information for CVE-2026-20404
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IV. Related Vulnerabilities
Same product: MediaTek chipset
Same vendor: MediaTek, Inc.
Same weakness: CWE-787
V. Comments for CVE-2026-20404

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