5.9

CVE-2026-17539

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.
Daten sind bereitgestellt durch das CVE Programm von einer CVE Numbering Authority (CNA) (Unstrukturiert).
HerstellerHitachi Energy
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Produkt RTU500 series CMU firmware
Default Statusunaffected
Version <= 12.7.7
Version 12.7.1
Status affected
Version <= 13.5.4
Version 13.5.1
Status affected
Version <= 13.6.3
Version 13.6.1
Status affected
Version <= 13.7.8
Version 13.7.1
Status affected
Version <= 13.8.2
Version 13.8.1
Status affected
VulnDex Vulnerability Enrichment
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Zu dieser CVE wurde keine Warnung gefunden.
EPSS Metriken
Typ Quelle Score Percentile
EPSS FIRST.org 0.35% 0.28
CVSS Metriken
Quelle Base Score Exploit Score Impact Score Vector String
cybersecurity@hitachienergy.com 5.9 2.2 3.6
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H
CWE-476 NULL Pointer Dereference

The product dereferences a pointer that it expects to be valid but is NULL.

https://publisher.hitachienergy.com/preview?DocumentID=8DBD000259&LanguageCode=en&DocumentPartId=&Action=Launch