AUGUST 4, 2026
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Case File

CVE-2021-21539

MEDIUM · CVSS 5.9 EPSS 0.62% Public Exploit

Source: NVD + CISA KEV + EPSS (historical backfill) · Published 2021-04-30 · 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.

Detected Signals
exploit

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

CVE
CVE-2021-21539
Severity
MEDIUM
CVSS
5.9
EPSS
0.62%

Original NVD Description

Dell EMC iDRAC9 versions prior to 4.40.00.00 contain a Time-of-check Time-of-use (TOCTOU) race condition vulnerability. A remote authenticated attacker could potentially exploit this vulnerability to gain elevated privileges when a user with higher privileges is simultaneously accessing iDRAC through the web interface.