CVE-2017-8840

Severity: medium (CVSS 5.3 v3.0)
Exploited in the wild: not listed in CISA KEV
EPSS: 3.6% probability of exploitation in the next 30 days
Public exploit or detection template: yes
Published: 2017-06-05 · updated 2026-06-17
Weakness: CWE-200

Description

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: 7.0.1
Peplink 2500 Firmware: 7.0.1
Peplink 380Hw6 Firmware: 7.0.1
Peplink 580Hw2 Firmware: 7.0.1
Peplink 710Hw3 Firmware: 7.0.1
Peplink B305Hw2 Firmware: 7.0.1

References

http://seclists.org/bugtraq/2017/Jun/1
https://www.exploit-db.com/exploits/42130/
https://www.x41-dsec.de/lab/advisories/x41-2017-005-peplink/
http://seclists.org/bugtraq/2017/Jun/1
https://www.exploit-db.com/exploits/42130/
https://www.x41-dsec.de/lab/advisories/x41-2017-005-peplink/

Get alerted when CVE-2017-8840 or the next vulnerability affects your stack