AUGUST 4, 2026
Live Feed
Back to database
Case File

CVE-2021-45420

CRITICAL · CVSS 9.8 EPSS 17.55% Public Exploit

Source: NVD + CISA KEV + EPSS (historical backfill) · Published 2022-02-14 · Last synced 2026-08-04

CyberRota Analysis

This is a critical severity vulnerability with a CVSS score of 9.8. Public exploit code or proof-of-concept references have been detected in its references. Its EPSS score suggests a 17.5% probability of exploitation in the next 30 days. It may be remotely exploitable. It may lead to a denial-of-service condition.

Public Exploit Signal

A public exploit, PoC, GitHub repository or Metasploit reference was detected for this CVE.

Detected Signals
remote code execution code execution

Note: these links are listed for security research and verification purposes only.

CVE
CVE-2021-45420
Severity
CRITICAL
CVSS
9.8
EPSS
17.55%

Original NVD Description

Emerson Dixell XWEB-500 products are affected by arbitrary file write vulnerability in /cgi-bin/logo_extra_upload.cgi, /cgi-bin/cal_save.cgi, and /cgi-bin/lo_utils.cgi. An attacker will be able to write any file on the target system without any kind of authentication mechanism, and this can lead to denial of service and potentially remote code execution. Note: the product has not been supported since 2018 and should be removed or replaced.

Related CVEs

Other vulnerabilities affecting the same vendor(s)