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Case File

CVE-2021-40839

HIGH · CVSS 7.5 EPSS 5.57% Public Exploit

Source: NVD + CISA KEV + EPSS (historical backfill) · Published 2021-09-10 · 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-2021-40839
Severity
HIGH
CVSS
7.5
EPSS
5.57%

Original NVD Description

The rencode package through 1.0.6 for Python allows an infinite loop in typecode decoding (such as via ;\x2f\x7f), enabling a remote attack that consumes CPU and memory.