CVE-2017-8840: Peplink 1350hw2 Firmware

Medium severity, CVSS 5.3. EPSS: 3.6% chance of exploitation in the next 30 days.

Debug information disclosure exists on Peplink Balance 305, 380, 580, 710, 1350, and 2500 devices with firmware before fw-b305hw2_380hw6_580hw2_710hw3_1350hw2_2500-7.0.1-build2093. A direct request to cgi-bin/HASync/hasync.cgi?debug=1 shows Master LAN Address, Serial Number, HA Group ID, Virtual IP, and Submitted syncid.

Affected products

• Peplink 1350hw2 Firmware: version 7.0.1 only
• Peplink 2500 Firmware: version 7.0.1 only
• Peplink 380hw6 Firmware: version 7.0.1 only
• Peplink 580hw2 Firmware: version 7.0.1 only
• Peplink 710hw3 Firmware: version 7.0.1 only
• Peplink b305hw2 Firmware: version 7.0.1 only

Published 2017-06-05. Last modified 2026-06-17.