AUGUST 4, 2026
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Case File

CVE-2021-31718

HIGH · CVSS 8.8 EPSS 0.96% Public Exploit

Source: NVD + CISA KEV + EPSS (historical backfill) · Published 2021-04-25 · 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
remote code execution code execution

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

CVE
CVE-2021-31718
Severity
HIGH
CVSS
8.8
EPSS
0.96%

Original NVD Description

The server in npupnp before 4.1.4 is affected by DNS rebinding in the embedded web server (including UPnP SOAP and GENA endpoints), leading to remote code execution.