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CVE-2025-41659— CODESYS Control PKI Exposure Enables Remote Certificate Access

Quick assessment

Affected
CODESYS Control RTE (SL)
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.

CODESYS Control是德国CODESYS公司的一套工业控制程序编程软件。 CODESYS Control存在安全漏洞，该漏洞源于远程访问PKI文件夹，可能导致提取敏感数据或接受受信任证书。

CVSS 8.3 · High EPSS 0.21% · P11
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I. Basic Information for CVE-2025-41659

Vulnerability Information
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Vulnerability Title
CODESYS Control PKI Exposure Enables Remote Certificate Access
Source: CVE Program / CVE List V5
Vulnerability Description
A low-privileged attacker can remotely access the PKI folder of the CODESYS Control runtime system and thus read and write certificates and its keys. This allows sensitive data to be extracted or to accept certificates as trusted. Although all services remain available, only unencrypted communication is possible if the certificates are deleted.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:L
Source: CVE Program / CVE List V5
Vulnerability Type
关键资源的不正确权限授予
Source: CVE Program / CVE List V5
Vulnerability Title
CODESYS Control 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
CODESYS Control是德国CODESYS公司的一套工业控制程序编程软件。 CODESYS Control存在安全漏洞，该漏洞源于远程访问PKI文件夹，可能导致提取敏感数据或接受受信任证书。
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
CODESYS Control RTE (SL) 0.0.0.0 ~ 3.5.21.20 -
CODESYS Control RTE (for Beckhoff CX) SL 0.0.0.0 ~ 3.5.21.20 -
CODESYS Control Win (SL) 0.0.0.0 ~ 3.5.21.20 -
CODESYS HMI (SL) 0.0.0.0 ~ 3.5.21.20 -
CODESYS Runtime Toolkit 0.0.0.0 ~ 3.5.21.20 -
CODESYS Control for BeagleBone SL 0.0.0.0 ~ 4.17.0.0 -
CODESYS Control for emPC-A/iMX6 SL 0.0.0.0 ~ 4.17.0.0 -
CODESYS Control for IOT2000 SL 0.0.0.0 ~ 4.17.0.0 -
CODESYS Control for Linux ARM SL 0.0.0.0 ~ 4.17.0.0 -
CODESYS Control for Linux SL 0.0.0.0 ~ 4.17.0.0 -
CODESYS Control for PFC100 SL 0.0.0.0 ~ 4.17.0.0 -
CODESYS Control for PFC200 SL 0.0.0.0 ~ 4.17.0.0 -
CODESYS Control for PLCnext SL 0.0.0.0 ~ 4.17.0.0 -
CODESYS Control for Raspberry Pi SL 0.0.0.0 ~ 4.17.0.0 -
CODESYS Control for WAGO Touch Panels 600 SL 0.0.0.0 ~ 4.17.0.0 -
CODESYS Virtual Control SL 0.0.0.0 ~ 4.17.0.0 -

II. Public POCs for CVE-2025-41659

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III. Intelligence Information for CVE-2025-41659

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Vendor Advisories for CVE-2025-41659 (1)

Same Patch Batch · CODESYS · 2025-08-04 · 3 CVEs total

CVE-2025-41691 7.5 HIGH CODESYS Control DoS via Unauthenticated NULL Pointer Dereference
CVE-2025-41658 5.5 MEDIUM CODESYS Toolkit Exposes Sensitive Files via Default Permissions

IV. Related Vulnerabilities

Same product: Control RTE (SL)
Same vendor: CODESYS
Same weakness: CWE-732

V. Comments for CVE-2025-41659

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