CVE-2015-5987: Zyxel GS1900-10hp Firmware

High severity, CVSS 8.6. EPSS: 1.3% chance of exploitation in the next 30 days.

Belkin F9K1102 2 devices with firmware 2.10.17 use an improper algorithm for selecting the ID value in the header of a DNS query, which makes it easier for remote attackers to spoof responses by predicting this value.

Affected products

• Zyxel GS1900-10hp Firmware: before 2.50\(aazi.0\)c0 (fixed in 2.50\(aazi.0\)c0)

Published 2015-12-31. Last modified 2026-06-17.