CVE-2017-8840

Name: CVE-2017-8840
Creator: NVD / NIST
Published: 2017-06-05T14:29:00.577+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

UnknownEPSS 3.57%

Last modified Jun 17, 2026

CVE-2017-8840 is a vulnerability of currently unknown severity. 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.. EPSS estimates a 3.57% chance of exploitation in the next 30 days.

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.

Metrics

EPSS Probability

3.57%

87.9th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-200

Affected Software

Vendor	Product	Versions
Peplink	B305hw2 Firmware	7.0.1
Peplink	380hw6 Firmware	7.0.1
Peplink	580hw2 Firmware	7.0.1
Peplink	710hw3 Firmware	7.0.1
Peplink	1350hw2 Firmware	7.0.1
Peplink	2500 Firmware	7.0.1

References

http://seclists.org/bugtraq/2017/Jun/1Mailing List, Third Party Advisory
https://www.exploit-db.com/exploits/42130/
https://www.x41-dsec.de/lab/advisories/x41-2017-005-peplink/Patch, Third Party Advisory
http://seclists.org/bugtraq/2017/Jun/1Mailing List, Third Party Advisory
https://www.exploit-db.com/exploits/42130/
https://www.x41-dsec.de/lab/advisories/x41-2017-005-peplink/Patch, Third Party Advisory

Timeline

Published: Jun 5, 2017
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2017-8840?

How severe is CVE-2017-8840?

Severity scoring for CVE-2017-8840 is pending analysis. The EPSS model estimates a 3.57% probability of exploitation in the next 30 days.

How do I fix CVE-2017-8840?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2017-8840?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST