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I. Basic Information for CVE-2021-31893
Vulnerability Information
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Vulnerability Title
N/A
Source: NVD (National Vulnerability Database)
Vulnerability Description
A vulnerability has been identified in SIMATIC PCS 7 V8.2 and earlier (All versions), SIMATIC PCS 7 V9.0 (All versions < V9.0 SP3), SIMATIC PDM (All versions < V9.2), SIMATIC STEP 7 V5.X (All versions < V5.6 SP2 HF3), SINAMICS STARTER (containing STEP 7 OEM version) (All versions < V5.4 HF2). The affected software contains a buffer overflow vulnerability while handling certain files that could allow a local attacker to trigger a denial-of-service condition or potentially lead to remote code execution.
Source: NVD (National Vulnerability Database)
CVSS Information
N/A
Source: NVD (National Vulnerability Database)
Vulnerability Type
未进行输入大小检查的缓冲区拷贝(传统缓冲区溢出)
Source: NVD (National Vulnerability Database)
Vulnerability Title
Siemens SIMATIC PCS 7 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Siemens SIMATIC PCS 7是德国西门子（Siemens）公司的一套过程控制系统。 Siemens SIMATIC PCS 7存在安全漏洞，该漏洞可能允许本地攻击者触发拒绝服务或可导致远程代码执行。以下产品和版本受到影响：SIMATIC PCS 7 V8.2 and earlier (All versions), SIMATIC PCS 7 V9.0 (All versions < V9.0 SP3), SIMATIC PDM (All versions < V9.2), SIMATIC S
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 PCS 7 V8.2 and earlier All versions -
SiemensSIMATIC PCS 7 V9.0 All versions < V9.0 SP3 -
SiemensSIMATIC PDM All versions < V9.2 -
SiemensSIMATIC STEP 7 V5.X All versions < V5.6 SP2 HF3 -
SiemensSINAMICS STARTER (containing STEP 7 OEM version) All versions < V5.4 HF2 -
II. Public POCs for CVE-2021-31893
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III. Intelligence Information for CVE-2021-31893
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IV. Related Vulnerabilities
Same product: SIMATIC PCS 7 V8.2 and earlier
Same vendor: Siemens
Same weakness: CWE-120
V. Comments for CVE-2021-31893

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