CISA ICS advisories flag critical missing-authentication flaws in industrial and broadcast devices
CISA published ICS advisories warning of critical “missing authentication for critical function” weaknesses (CWE-306) that expose device management/control interfaces to unauthenticated access. Synectix LAN 232 TRIO (3-port serial-to-Ethernet adapter) is affected in all versions under CVE-2026-1633 with CVSS 3.1 10.0, enabling unauthenticated attackers to modify critical device settings or factory reset the device. Avation Light Engine Pro is also affected in all versions under CVE-2026-1341 with CVSS 3.1 9.8, allowing an attacker to take full control of the device due to an exposed configuration/control interface without authentication.
Separate reporting highlighted a similar CISA alert for KiloView Encoder Series devices, tracked as CVE-2026-1453 with CVSS 9.8, where missing authentication allows unauthenticated users to perform administrative actions such as creating or deleting administrator accounts, potentially granting full administrative control and enabling disruption or hijacking of broadcast/streaming workflows. The KiloView issue was described as affecting multiple Encoder Series models and specific firmware/hardware combinations (e.g., E1/E1-s/E2 with listed firmware versions), reinforcing the broader risk of internet- or enterprise-exposed device management planes lacking access control.
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