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Case File

CVE-2021-29462

HIGH · CVSS 7.6 EPSS 0.63% Public Exploit

Source: NVD + CISA KEV + EPSS (historical backfill) · Published 2021-04-20 · Last synced 2026-08-04

CyberRota Analysis

This is a high severity vulnerability with a CVSS score of 7.6. Public exploit code or proof-of-concept references have been detected in its references.

Public Exploit Signal

A public exploit, PoC, GitHub repository or Metasploit reference was detected for this CVE.

GitHub PoC Links

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

CVE
CVE-2021-29462
Severity
HIGH
CVSS
7.6
EPSS
0.63%

Original NVD Description

The Portable SDK for UPnP Devices is an SDK for development of UPnP device and control point applications. The server part of pupnp (libupnp) appears to be vulnerable to DNS rebinding attacks because it does not check the value of the `Host` header. This can be mitigated by using DNS revolvers which block DNS-rebinding attacks. The vulnerability is fixed in version 1.14.6 and later.

Related CVEs

Other vulnerabilities affecting the same vendor(s)