AUGUST 4, 2026
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Case File

CVE-2026-21666

CRITICAL · CVSS 9.9 EPSS 1.13% Public Exploit

Source: NVD + CISA KEV + EPSS (historical backfill) · Published 2026-03-12 · Last synced 2026-08-04

CyberRota Analysis

This is a critical severity vulnerability with a CVSS score of 9.9. Public exploit code or proof-of-concept references have been detected in its references. It may be remotely exploitable.

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-2026-21666
Severity
CRITICAL
CVSS
9.9
EPSS
1.13%

Original NVD Description

A vulnerability allowing an authenticated domain user to perform remote code execution (RCE) on the Backup Server.

Related CVEs

Other vulnerabilities affecting the same vendor(s)