PT-2026-84915 · Hitachi Energy · Rtu500 Series Cmu Firmware
CVE-2026-17539
·
Published
2026-09-03
·
Updated
2026-09-03
CVSS v3.1
5.9
Medium
| Vector | AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H |
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.
Fix
NULL Pointer Dereference
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Weakness Enumeration
Related Identifiers
Affected Products
Rtu500 Series Cmu Firmware