CVE-2026-111731
High
Description
P-Net before 1.0.3 enters an infinite loop when handling a read request for the PDPortDataCheck record with subslot 0 (whole module). The loop over the ports never advanced to the next port, so the request never completes and the device stops responding. A remote unauthenticated attacker can use this to cause a denial of service.
SeverityHigh
CVSS8.7
Exploit probability—
ProductP-Net
PublishedOct 29, 2026
First seenNov 4, 2026
Weakness typeCWE-835CWE-835
How to fix
Update
- RT-Labs P-Net1.0.3 or later
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| RT-Labs P-Net | v < 1.0.3 | 1.0.3 |
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