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I. Basic Information for CVE-2025-40743
Vulnerability Information

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Vulnerability Title
N/A
Source: NVD (National Vulnerability Database)
Vulnerability Description
A vulnerability has been identified in SINUMERIK 828D PPU.4 (All versions < V4.95 SP5), SINUMERIK 828D PPU.5 (All versions < V5.25 SP1), SINUMERIK 840D sl (All versions < V4.95 SP5), SINUMERIK MC (All versions < V1.25 SP1), SINUMERIK MC V1.15 (All versions < V1.15 SP5), SINUMERIK ONE (All versions < V6.25 SP1), SINUMERIK ONE V6.15 (All versions < V6.15 SP5). The affected application improperly validates authentication for its VNC access service, allowing access with insufficient password verification. This could allow an attacker to gain unauthorized remote access and potentially compromise system confidentiality, integrity, or availability.
Source: NVD (National Vulnerability Database)
CVSS Information
CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:L
Source: NVD (National Vulnerability Database)
Vulnerability Type
使用候选路径或通道进行的认证绕过
Source: NVD (National Vulnerability Database)
Vulnerability Title
Siemens多款产品 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Siemens SINUMERIK 840D sl等都是德国西门子(Siemens)公司的产品。Siemens SINUMERIK 840D sl是一套高级机床数控系统。Siemens SINUMERIK是一套控制系统。Siemens Sinumerik 828D是一款基于面板的 Cnc。 Siemens多款产品存在安全漏洞,该漏洞源于VNC访问服务身份验证不当,可能导致未经授权的远程访问。以下产品及版本受到影响:SINUMERIK 828D PPU.4 V4.95 SP5之前版本、SINUMERIK 8
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
SiemensSINUMERIK 828D PPU.4 0 ~ V4.95 SP5 -
SiemensSINUMERIK 828D PPU.5 0 ~ V5.25 SP1 -
SiemensSINUMERIK 840D sl 0 ~ V4.95 SP5 -
SiemensSINUMERIK MC 0 ~ V1.25 SP1 -
SiemensSINUMERIK MC V1.15 0 ~ V1.15 SP5 -
SiemensSINUMERIK ONE 0 ~ V6.25 SP1 -
SiemensSINUMERIK ONE V6.15 0 ~ V6.15 SP5 -
II. Public POCs for CVE-2025-40743
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III. Intelligence Information for CVE-2025-40743
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IV. Related Vulnerabilities
V. Comments for CVE-2025-40743

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