CVE-2026-1773
CVSS Score
0.0
EPSS Score
0.0%
EPSS Percentile
0th
IEC 60870-5-104: Potential Denial of Service impact on reception of invalid U-format frame. Product is only affected if IEC 60870-5-104 bi-directional functionality is configured. Enabling secure communication following IEC 62351-3 does not remediate the vulnerability but mitigates the risk of exploitation.
| CWE | CWE-184 |
| Vendor | hitachi energy |
| Product | rtu500 series cmu firmware |
| Published | Feb 24, 2026 |
| Last Updated | Feb 28, 2026 |
Stay Ahead of the Next One
Get instant alerts for hitachi energy rtu500 series cmu firmware
Be the first to know when new unknown vulnerabilities affecting hitachi energy rtu500 series cmu firmware are published — delivered to Slack, Telegram or Discord.
Get Free Alerts →
Free · No credit card · 60 sec setup
Affected Versions
Hitachi Energy / RTU500 series CMU firmware
12.7.1 ≤ 12.7.7 13.5.1 ≤ 13.5.4 13.6.1 ≤ 13.6.2 13.7.1 ≤ 13.7.7 13.8.1