CVE-2017-5544
An unauthorized attacker can access the device's SSH service, using a password cracking tool to establish SSH connections quickly.
Does this matter?
Lower severity and a low EPSS score (5.25%). Track it; it rarely justifies an emergency change on its own.
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.
- CVSS 3.1
- 5.9 MEDIUMCVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H
- EPSS
- 5.25% probability · 92th percentile
- Public exploits
- None in Exploit-DB
- CISA KEV
- Not listed
- Weakness
- CWE-400
- Affected
- fiberhome/fengine s5800 firmware
- Source
- cve@mitre.org
EPSS 5.2% since 27 October 2026; no change recorded yet. The dashed line is the ten per cent mark our analysts treat as “patch before the next change window”. Points are recorded when the score first appears and whenever it moves by a percentage point or more.
References
- http://www.nfcwar.comURL Repurposed
- http://www.securityfocus.com/bid/95708Third Party Advisory, VDB Entry
- http://www.nfcwar.comURL Repurposed
- http://www.securityfocus.com/bid/95708Third Party Advisory, VDB Entry
Source: NVD record, EPSS from FIRST.org, KEV from CISA, exploits from Exploit-DB. Refreshed daily. Download this record as JSON.