Description (CNA)
A Modbus connection feature on openPDC accepts a caller-specified destination address and port with no restriction on which internal hosts may be targeted. An authenticated user can attempt connections to arbitrary internal network destinations, revealing which destinations are reachable. With repeated attempts, an attacker may be able to map the internal network.
Affected (CNA)
| Vendor / product | Versions |
|---|---|
| Grid Protection Alliance / openPDC | affected 0 before 2.9.477; affected 0 before 2.9.482; unaffected 2.9.482 |
| Grid Protection Alliance / openPDC (Docker image) | affected 0 before 2.9.477; affected 0 before 2.9.482 |
| Grid Protection Alliance / openHistorian | affected 0 before 2.8.580; affected 0 before 2.8.585; unaffected 2.8.585 |
CWE
CWE-918
References
- https://www.cisa.gov/news-events/ics-advisories/icsa-26-281-02
- https://github.com/cisagov/CSAF/blob/develop/csaf_files/OT/white/2026/icsa-26-281-02.json
ADP enrichment
No English description supplied.
No references supplied.