AUGUST 4, 2026
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Case File

CVE-2021-42559

HIGH · CVSS 8.8 EPSS 1.96% Public Exploit

Source: NVD + CISA KEV + EPSS (historical backfill) · Published 2022-01-12 · Last synced 2026-08-04

CyberRota Analysis

AI analysis pending.

Public Exploit Signal

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

GitHub PoC Links
github.com ↗ github.com ↗

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

CVE
CVE-2021-42559
Severity
HIGH
CVSS
8.8
EPSS
1.96%

Original NVD Description

An issue was discovered in CALDERA 2.8.1. It contains multiple startup "requirements" that execute commands when starting the server. Because these commands can be changed via the REST API, an authenticated user can insert arbitrary commands that will execute when the server is restarted.