CVE-2026-17539
MEDIUM
NVD
CVSS Score
5.9
Severity
MEDIUM
Published
Sep 03, 2026
Vendor
unknown
Description
RTU500 has a vulnerability, where high-load scenarios, such as sending GI requests at short intervals, may cause a NULL pointer dereference in the last entry of the enhanced message queue. This can cause a BCI_IEC104 fatal write error, resulting in connection interruption and restart, and ultimately a denial of service for bidirectional IEC 60870-5-104 communication.