AUGUST 4, 2026
Live Feed
Back to database
Case File

CVE-2021-40239

CRITICAL · CVSS 9.8 EPSS 1.36% Public Exploit

Source: NVD + CISA KEV + EPSS (historical backfill) · Published 2021-10-11 · 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 ↗

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

CVE
CVE-2021-40239
Severity
CRITICAL
CVSS
9.8
EPSS
1.36%

Original NVD Description

A Buffer Overflow vulnerability exists in the latest version of Miniftpd in the do_retr function in ftpproto.c