CVE-2025-53476
Medium
Description
A denial of service vulnerability exists in the ModbusTCP server functionality of OpenPLC _v3 a931181e8b81e36fadf7b74d5cba99b73c3f6d58. A specially crafted series of network connections can lead to the server not processing subsequent Modbus requests. An attacker can open a series of TCP connections to trigger this vulnerability.
SeverityMedium
CVSS5.3
Exploit probability—
ProductOpenPLC_v3
PublishedOct 7, 2025
First seenOct 7, 2025
Weakness typeCWE-775CWE-775
How to fix
Sources list no fixed version or patch link for this vulnerability.
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| OpenPLC OpenPLC_v3 | a931181e8b81e36fadf7b74d5cba99b73c3f6d58 | — |
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