VULNERABILITY INTELLIGENCE
CVE-2026-8479
EPSS probability0.17%
CISA KEVNot currently listed
Published2026-05-26
Last modified2026-07-23
Description
IEC 60870-5-104 used in bidirectional mode in RTU500 is vulnerable for a NULL pointer dereferencing, if a specially crafted sequence of messages is sent for a certain time, causing Denial of Service impact. Product is only affected if IEC 60870-5-104 functionality in bidirectional mode (BCI) is configured.
Weakness classification
- cybersecurity@hitachienergy.com: CWE-476