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CVE-2026-54799

CVSS 6.7 · Medium EPSS 0.13% · P3

Affected Version Matrix 2

VendorProductVersion RangeStatus
SiemensCPCI85 Central Processing/Communication< V26.20affected
SiemensSICORE Base system< V26.20.0affected
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I. Basic Information for CVE-2026-54799

Vulnerability Information
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Vulnerability Title
N/A
Source: NVD (National Vulnerability Database)
Vulnerability Description
A vulnerability has been identified in CPCI85 Central Processing/Communication (All versions < V26.20), SICORE Base system (All versions < V26.20.0). The affected application contains a vulnerability in its firmware update mechanism's signature validation process. This could allow an attacker to install malicious firmware, leading to persistent code execution and system compromise.
Source: NVD (National Vulnerability Database)
CVSS Information
CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H
Source: NVD (National Vulnerability Database)
Vulnerability Type
遗留的调试代码
Source: NVD (National Vulnerability Database)
Vulnerability Title
Siemens CPCI85 Central Processing/Communication 调试信息泄露漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Siemens CPCI85 Central Processing/Communication是德国Siemens公司的一款中央处理及通信设备。 Siemens CPCI85 Central Processing/Communication V26.20之前版本存在日志信息泄露漏洞，该漏洞源于固件更新机制的签名验证过程存在问题，可能导致攻击者安装恶意固件，从而执行持久代码并破坏系统。
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
SiemensCPCI85 Central Processing/Communication 0 ~ V26.20 -
SiemensSICORE Base system 0 ~ V26.20.0 -

II. Public POCs for CVE-2026-54799

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III. Intelligence Information for CVE-2026-54799

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Vendor Advisories for CVE-2026-54799 (1)

Same Patch Batch · Siemens · 2026-07-09 · 4 CVEs total

CVE-2026-548017.2 HIGHSiemens CPCI85 Central Processing/Communication 授权问题漏洞
CVE-2026-547986.5 MEDIUMSiemens CPCI85 Central Processing/Communication 调试信息泄露漏洞
CVE-2026-548004.8 MEDIUMSiemens CPCI85 Central Processing/Communication 配置错误漏洞

IV. Related Vulnerabilities

Same product: CPCI85 Central Processing/Communication
Same vendor: Siemens
Same weakness: CWE-489

V. Comments for CVE-2026-54799

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