AUGUST 4, 2026
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Case File

CVE-2021-27171

CRITICAL · CVSS 9.8 EPSS 17.84%

Source: NVD + CISA KEV + EPSS (historical backfill) · Published 2021-02-10 · Last synced 2026-08-04

CyberRota Analysis

This is a critical severity vulnerability with a CVSS score of 9.8. It affects Linux. Its EPSS score suggests a 17.8% probability of exploitation in the next 30 days.

CVE
CVE-2021-27171
Severity
CRITICAL
CVSS
9.8
EPSS
17.84%
Linux

Original NVD Description

An issue was discovered on FiberHome HG6245D devices through RP2613. It is possible to start a Linux telnetd as root on port 26/tcp by using the CLI interface commands of ddd and shell (or tshell).

Related CVEs

Other vulnerabilities affecting the same vendor(s)