CVE-2026-1773
High · 7.5CVSS
7.5
EPSS
0.5%
Published
Feb 24, 2026
CISA due date
—
The record
IEC 60870-5-104 used in RTU500: 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.
Affected packages
| Ecosystem | Package | Introduced | Fixed |
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