CVE-2025-66848: Jdcloud AX1800 Firmware

Critical severity, CVSS 9.8. EPSS: 1.1% chance of exploitation in the next 30 days.

JD Cloud NAS routers AX1800 (4.3.1.r4308 and earlier), AX3000 (4.3.1.r4318 and earlier), AX6600 (4.5.1.r4533 and earlier), BE6500 (4.4.1.r4308 and earlier), ER1 (4.5.1.r4518 and earlier), and ER2 (4.5.1.r4518 and earlier) contain an unauthorized remote command execution vulnerability.

Affected products

• Jdcloud AX1800 Firmware: up to and including 4.3.1.r4308
• Jdcloud AX3000 Firmware: up to and including 4.3.1.r4318
• Jdcloud AX6600 Firmware: up to and including 4.5.1.r4533
• Jdcloud BE6500 Firmware: up to and including 4.4.1.r4308
• Jdcloud ER1 Firmware: up to and including 4.5.1.r4518
• Jdcloud ER2 Firmware: up to and including 4.5.1.r4518

Published 2025-12-30. Last modified 2026-07-05.