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I. Basic Information for CVE-2021-33737
Vulnerability Information

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Vulnerability Title
N/A
Source: NVD (National Vulnerability Database)
Vulnerability Description
A vulnerability has been identified in SIMATIC CP 343-1 (incl. SIPLUS variants) (All versions), SIMATIC CP 343-1 Advanced (incl. SIPLUS variants) (All versions), SIMATIC CP 343-1 ERPC (All versions), SIMATIC CP 343-1 Lean (incl. SIPLUS variants) (All versions), SIMATIC CP 443-1 (All versions < V3.3), SIMATIC CP 443-1 (All versions < V3.3), SIMATIC CP 443-1 Advanced (All versions < V3.3), SIPLUS NET CP 443-1 (All versions < V3.3), SIPLUS NET CP 443-1 Advanced (All versions < V3.3). Sending a specially crafted packet to port 102/tcp of an affected device could cause a denial of service condition. A restart is needed to restore normal operations.
Source: NVD (National Vulnerability Database)
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Source: NVD (National Vulnerability Database)
Vulnerability Type
内存缓冲区边界内操作的限制不恰当
Source: NVD (National Vulnerability Database)
Vulnerability Title
Siemens SIAMTIC CP343-1 缓冲区错误漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Siemens SIAMTIC CP343-1是德国西门子(Siemens)公司的一款通信模块。 Siemens SIAMTIC CP343-1存在缓冲区错误漏洞,该漏洞源于将特制数据包发送到受影响设备的端口 102/tcp 可能会导致拒绝服务情况。需要重新启动才能恢复正常操作。以下产品及版本受到影响:SIMATIC CP 343-1 (incl. SIPLUS variants) (All versions), SIMATIC CP 343-1 Advanced (incl. SIPLUS varian
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
SiemensSIMATIC CP 343-1 (incl. SIPLUS variants) All versions -
SiemensSIMATIC CP 343-1 Advanced (incl. SIPLUS variants) All versions -
SiemensSIMATIC CP 343-1 ERPC All versions -
SiemensSIMATIC CP 343-1 Lean (incl. SIPLUS variants) All versions -
SiemensSIMATIC CP 443-1 All versions < V3.3 -
SiemensSIMATIC CP 443-1 All versions < V3.3 -
SiemensSIMATIC CP 443-1 Advanced All versions < V3.3 -
SiemensSIPLUS NET CP 443-1 All versions < V3.3 -
SiemensSIPLUS NET CP 443-1 Advanced All versions < V3.3 -
II. Public POCs for CVE-2021-33737
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III. Intelligence Information for CVE-2021-33737
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IV. Related Vulnerabilities
V. Comments for CVE-2021-33737

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