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I. Basic Information for CVE-2021-21962
Vulnerability Information

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Vulnerability Title
N/A
Source: NVD (National Vulnerability Database)
Vulnerability Description
A heap-based buffer overflow vulnerability exists in the OTA Update u-download functionality of Sealevel Systems, Inc. SeaConnect 370W v1.3.34. A series of specially-crafted MQTT payloads can lead to remote code execution. An attacker must perform a man-in-the-middle attack in order to trigger this vulnerability.
Source: NVD (National Vulnerability Database)
CVSS Information
N/A
Source: NVD (National Vulnerability Database)
Vulnerability Type
堆缓冲区溢出
Source: NVD (National Vulnerability Database)
Vulnerability Title
Sealevel Systems SeaConnect 370W 缓冲区错误漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Sealevel Systems SeaConnect 370W是美国Sealevel Systems公司的一款工业物联网(Iiot)边缘设备。用于远程监视和控制实际 I/O 进程的状态。 Sealevel Systems SeaConnect 370W 中存在缓冲区错误漏洞,该漏洞源于产品的 OTA Update u-download功能未对内存边界做有效限制。攻击者可通过特制的网络包导致远程代码执行。以下产品及版本受到影响:Sealevel Systems SeaConnect 370W v1.3.3
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
-Sealevel Sealevel Systems, Inc. SeaConnect 370W v1.3.34 -
II. Public POCs for CVE-2021-21962
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III. Intelligence Information for CVE-2021-21962
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IV. Related Vulnerabilities
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