Is CVE-2026-1773 actively exploited?

No active exploitation of CVE-2026-1773 has been confirmed so far. Continue monitoring, as exploit status can change.

Can CVE-2026-1773 be exploited remotely?

Yes. CVE-2026-1773 is exploitable remotely over the network (CVSS attack vector: Network).

What is the CVSS score of CVE-2026-1773?

CVE-2026-1773 has a CVSS score of 7.5 (HIGH) and an EPSS exploitation probability of 0.06%.

HOME VULNERABILITIESCVE-2026-1773

HIGH

CVE-2026-1773

CWE-184Published: February 24, 2026· Updated: Feb 27, 2026

7.5

CVSS v3.1

EPSS:0.06%probability of exploitation in 30 daysPercentile:17.2th

Official Description

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.

NVD Source

Technical Analysis

CVE-2026-1773 can be exploited remotely over the network without requiring physical or adjacent access, significantly expanding the attack surface for threat actors.

The vulnerability requires no privileges and no user interaction, making it a prime target for automated exploitation campaigns and worm-like propagation.

A successful exploit results in availability disruption (denial of service), with a CVSS base score of 7.5.