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CVE-2026-54799

Quick assessment

Affected
Siemens CPCI85 Central Processing/Communication
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

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。

CVSS 6.7 · Medium EPSS 0.18% · P7

Affected Version Matrix 2

VendorProduct Version RangeStatus
Siemens CPCI85 Central Processing/Communication < V26.20 affected
Siemens SICORE Base system < V26.20.0 affected
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I. Basic Information for CVE-2026-54799

Vulnerability Information
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Vulnerability Title
N/A
Source: CVE Program / CVE List V5
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: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H
Source: CVE Program / CVE List V5
Vulnerability Type
遗留的调试代码
Source: CVE Program / CVE List V5
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

Vendor Product Affected Versions CPE Subscribe
Siemens CPCI85 Central Processing/Communication 0 ~ V26.20 -
Siemens SICORE 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-2026-54801 7.2 HIGH Siemens CPCI85 Central Processing/Communication 授权问题漏洞
CVE-2026-54798 6.5 MEDIUM Siemens CPCI85 Central Processing/Communication 调试信息泄露漏洞
CVE-2026-54800 4.8 MEDIUM Siemens 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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