Zs.z53rl.a81 Firmware !!top!! -

Critical Security Patch Notice for ZetaSync Module Firmware (Version Zs.z53rl.a81)

ZetaSync has officially released firmware version Zs.z53rl.a81 to address two critical vulnerabilities (CVE-2025-4412 and CVE-2025-4413) discovered in the RL-series telemetry modules. This update is mandatory for all devices operating on firmware branches Zs.z53rl.a7x or earlier. Zs.z53rl.a81 Firmware

Firmware branch Zs.z53rl.a81 will receive critical security updates until Q4 2028. After that date, migration to the next-generation Zeta-NG platform is recommended. Critical Security Patch Notice for ZetaSync Module Firmware

— ZetaSync Embedded Systems Division