Description
The Modbus slave/outstation driver in the OPC Drivers 1.0.20 and earlier in IOServer OPC Server allows remote attackers to cause a denial of service (out-of-bounds read and daemon crash) via a crafted packet.
Affected products
| Vendor | Product | Affected | Fixed |
|---|---|---|---|
| IOServer | OPC Drivers | ≤ 1.0.20 | — |
Advisories 1
- ICSA-14-100-01 IOServer Out of Bounds Read Vulnerability CISA ICS & IT advisories · Jun 9, 2025