CVE-2017-5544 describes a denial-of-service vulnerability in FiberHome Fengine S5800 switches (V210R240 and related models). An unauthenticated attacker can trigger an SSH login timeout increase by rapidly attempting to crack SSH passwords, consuming connection slots. This renders legitimate SSH/Telnet access impossible, requiring a device restart to restore service. Rated Medium severity (CVSS 5.9), the attack has high complexity but can lead to high availability impact. There is no evidence of active exploitation, public exploit code, or significant community discussion.
| Vendor | Product | Version(s) | CPE |
|---|---|---|---|
v210r240CPE matchmatch criteria | cpe:2.3:o:fiberhome:fengine_s5800_firmware:v210r240:*:*:*:*:*:*:* |
CVSS version used by this source: 3.1
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H
The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.0 Bluesky, 0.0 Mastodon, and 0.2 GitHub mentions.
No media coverage found for this CVE.
The average CVE in this peer group has 0.0 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.
Remediation records are not available for this CVE.