CVE-2026-8479
6.9
CVSS:4.0/AV:A/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N
Summary
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.
Affected Software
| Vendor | Product | Version Range | Status |
|---|---|---|---|
| Hitachi Energy | RTU500 series CMU firmware | 12.7.1 <= 12.7.7 | affected |
| Hitachi Energy | RTU500 series CMU firmware | 13.5.1 <= 13.5.4 | affected |
| Hitachi Energy | RTU500 series CMU firmware | 13.6.1 <= 13.6.3 | affected |
| Hitachi Energy | RTU500 series CMU firmware | 13.7.1 <= 13.7.8 | affected |
| Hitachi Energy | RTU500 series CMU firmware | 13.8.1 | affected |
Weaknesses
- CWE-476: CWE-476 NULL pointer dereference
ADP Enrichment
CISA ADP Vulnrichment
- SSVC:
- Exploitation: none
- Automatable: no
- Technical Impact: partial
References
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