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CVE-2026-85115

Quick assessment

Affected
Siemens .NET Client Library for SIMATIC S7 Webserver API
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.

在 SIMATIC S7 Webserver API 的 .NET 客户端库中发现了一个漏洞（所有低于 V3.3.62 的版本均受影响）。受影响的應用程式未正確隱藏 HTTP 錯誤異常訊息中的 PLC 還原密碼。 這可能允許擁有日誌或其他診斷輸出存取權限的攻擊者取得明文還原密碼，並潛在地對 PLC 執行未經授權的操作。

CVSS 5.5 · Medium EPSS 0.15% · P4

Possible ATT&CK Techniques 1 AI

T1005 · Data from Local System

Affected Version Matrix 1

VendorProduct Version RangeStatus
Siemens .NET Client Library for SIMATIC S7 Webserver API < V3.3.62 affected
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I. Basic Information for CVE-2026-85115

Vulnerability Information
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Vulnerability Title
N/A
Source: CVE Program / CVE List V5
Vulnerability Description
A vulnerability has been identified in .NET Client Library for SIMATIC S7 Webserver API (All versions < V3.3.62). Affected applications do not properly redact PLC restore passwords from HTTP error exception messages. This could allow an attacker with access to logs or other diagnostic output to obtain the plaintext restore password and potentially perform unauthorized operations on the PLC.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
Source: CVE Program / CVE List V5
Vulnerability Type
通过错误消息导致的信息暴露
Source: CVE Program / CVE List V5

Affected Products

Vendor Product Affected Versions CPE Subscribe
Siemens .NET Client Library for SIMATIC S7 Webserver API 0 ~ V3.3.62 -

II. Public POCs for CVE-2026-85115

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III. Intelligence Information for CVE-2026-85115

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Vendor Advisories for CVE-2026-85115 (1)

Same Patch Batch · Siemens · 2026-10-13 · 32 CVEs total

CVE-2026-63350 9.6 CRITICAL Siemens Trace文件解析漏洞，导致浏览器端JS执行
CVE-2026-63353 9.6 CRITICAL Siemens Trace文件XSS漏洞：恶意JS执行并越权操控PLC
CVE-2026-63354 9.6 CRITICAL Siemens PLCs XSS漏洞（读取诊断权限）
CVE-2026-44415 9.1 CRITICAL GitLab越权访问漏洞
CVE-2026-89197 8.8 HIGH RUGGEDCOM CROSSBOW V6.0以下版本SQL注入漏洞
CVE-2026-89198 8.8 HIGH RUGGEDCOM CROSSBOW<6.0任意SQL注入漏洞
CVE-2026-89199 8.8 HIGH RUGGEDCOM CROSSBOW < V6.0信息泄露漏洞
CVE-2026-89196 8.8 HIGH RUGGEDCOM CROSSBOW V6.0以下版本存在SQL注入漏洞
CVE-2026-59241 8.8 HIGH SIMATIC WinCC越权漏洞（CVE-2024-12345）
CVE-2026-78557 8.3 HIGH Industrial Edge App Publisher V1.27.9以下版本RCE漏洞
CVE-2026-102073 8.2 HIGH 艾礼富MBC/MEC/PXC/TALON远程内存读取及DoS
CVE-2026-72895 7.7 HIGH SIMATIC IPC系列安全启动绕过漏洞
CVE-2026-102076 7.5 HIGH Apogee系列软件Web服务拒绝服务漏洞
CVE-2026-85114 7.5 HIGH .NET Client Library <V3.3.61 路径遍历漏洞
CVE-2026-102075 7.5 HIGH Apogee/Talon设备Web服务DoS漏洞
CVE-2026-102074 7.5 HIGH Apogee系列软件FTP服务拒绝服务漏洞
CVE-2026-89201 7.5 HIGH RUGGEDCOM CROSSBOW <V6.0 SQL注入漏洞
CVE-2026-78556 7.4 HIGH Industrial Edge App Publisher TLS证书验证绕过漏洞
CVE-2026-44414 6.8 MEDIUM CVE-2026-44414
CVE-2026-89200 6.7 MEDIUM RUGGEDCOM CROSSBOW SQL注入漏洞

Showing top 20 of 32 CVEs. View all on vendor page &rarr; →

IV. Related Vulnerabilities

Same product: .NET Client Library for SIMATIC S7 Webserver API
Same vendor: Siemens
Same weakness: CWE-209

V. Comments for CVE-2026-85115

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