CVE-2026-55732: Loytec L-Dali

High severity, CVSS 8.7. EPSS: 0.5% chance of exploitation in the next 30 days.

Out-of-bounds Read (CWE-125) in BACnet packet parsing (`bacdt_datetime_to_tod`) in Loytec LIP-ME201C, L-INX, L-GATE, L-ROC, L-IOB, L-DALI, L-VIS and L-PAD through 8.4.18 on LINX-A64 allows an unauthenticated remote attacker to crash `linx_a64.exe` and ultimately reboot the device via a malformed BACnet TimeSynchronization or UTC-TimeSynchronization packet with an invalid month value. The same vulnerability affects multiple other Loytec products.

Affected products

• Loytec L-Dali: up to and including 8.4.18
• Loytec L-Gate: up to and including 8.4.18
• Loytec L-Inx: up to and including 8.4.18
• Loytec L-Iob: up to and including 8.4.18
• Loytec L-Pad: up to and including 8.4.18
• Loytec L-Roc: up to and including 8.4.18
• Loytec L-Vis: up to and including 8.4.18
• Loytec Lip-ME20XC: up to and including 8.4.18

Published 2026-07-24. Last modified 2026-07-27.