VULNERABILITY INTELLIGENCE

CVE-2017-5544

CVSS score5.9 MEDIUM
EPSS probability5.25%
CISA KEVNot currently listed
Published2017-01-23
Last modified2026-06-17
CVSS vectorCVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H

Description

An issue was discovered on FiberHome Fengine S5800 switches V210R240. An unauthorized attacker can access the device's SSH service, using a password cracking tool to establish SSH connections quickly. This will trigger an increase in the SSH login timeout (each of the login attempts will occupy a connection slot for a longer time). Once this occurs, legitimate login attempts via SSH/telnet will be refused, resulting in a denial of service; you must restart the device.

Weakness classification

  • CWE-400: Uncontrolled Resource Consumption

Primary references