AUGUST 5, 2026
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Case File

CVE-2021-27420

MEDIUM · CVSS 5.3 EPSS 1.04%

Source: NVD + CISA KEV + EPSS (historical backfill) · Published 2022-03-23 · Last synced 2026-08-04

CyberRota Analysis

This is a medium severity vulnerability with a CVSS score of 5.3. See the original NVD description below for full technical details.

CVE
CVE-2021-27420
Severity
MEDIUM
CVSS
5.3
EPSS
1.04%

Original NVD Description

GE UR firmware versions prior to version 8.1x web server task does not properly handle receipt of unsupported HTTP verbs, resulting in the web server becoming temporarily unresponsive after receiving a series of unsupported HTTP requests. When unresponsive, the web server is inaccessible. By itself, this is not particularly significant as the relay remains effective in all other functionality and communication channels.

Related CVEs

Other vulnerabilities affecting the same vendor(s)