Vulnerability Intelligence Report
CODESYS Control PKI Exposure Enables Remote Certificate Access
CVE-2025-41659
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.
No Active Exploit Signals
CVSS Base Score
8.3
HIGH
Exploitability:2.9
Impact Score:5.5
EPSS Probability:0.20%
Executive Threat Verdict
Evaluating...
Evaluating Threat Landscape...
Assessing known weaponization, exploitation telemetry, and federal advisories.
Attack Surface
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Authentication
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Weaponization
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SSVC Action
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Affected Products & Versions
| Vendor | Product | Affected Versions |
|---|---|---|
| No affected products specified. | ||
Threat Intelligence Signals
EPSS Score
0.201%
GitHub Advisory
Identity & Timeline
| Status | PUBLISHED |
| Assigning Authority | CERT@VDE · CERT · Germany |
| Reserved | 2025-04-16T11:17:48 |
| Published | 2025-08-04T08:04:04 |
| Last Updated | 2025-08-04T16:35:32 |
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