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cve 2025 12056

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CVE-2025-12056 is a denial-of-service vulnerability affecting the Shelly Pro 3EM smart energy meter. The vulnerability stems from a Modbus parsing bug that allows an attacker to send specially crafted Modbus requests, causing an out-of-bounds read. This forces the device to access illegal data addresses without proper error handling, leading to a reboot and denial of service. CISA assigned CVE-2025-12056 with a CVSS v4 base score of 8.3, highlighting the risk to industrial and building automation systems using Modbus TCP. Operators are advised to apply firmware updates or mitigations to prevent exploitation.
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    Shelly Pro 3EM Modbus DoS Vulnerability CVE-2025-12056 Explained

    Shelly’s Pro 3EM smart DIN-rail energy meter contains a Modbus parsing bug that CISA calls an out‑of‑bounds read leading to a reboot and denial‑of‑service; the agency assigned CVE‑2025‑12056 and reported a CVSS v4 base score of 8.3, warning operators that specially crafted Modbus requests can...
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    • cve 2025 12056 denial of service modbus/tcp shelly pro 3em
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    • Forum: Security Alerts
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