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Dover ProGauge MagLink LX Vulnerabilities and Fixes

⚠️ Dover Fueling Solutions disclosed critical vulnerabilities in its ProGauge MagLink LX4, LX4 Plus, and LX4 Ultimate tank monitors that may be exploited remotely. Identified issues include an integer overflow (CVE-2025-55068), a hard-coded cryptographic signing key (CVE-2025-54807), and non‑changeable weak default root credentials (CVE-2025-30519), with ratings up to CVSS v4 9.3. Affected firmware must be updated to 4.20.3 for LX4/LX4 Plus or 5.20.3 for LX4 Ultimate; operators are urged to minimize network exposure and place devices behind firewalls.