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Case File

CVE-2021-31802

HIGH · CVSS 8.8 EPSS 14.18% Public Exploit

Source: NVD + CISA KEV + EPSS (historical backfill) · Published 2021-04-26 · Last synced 2026-08-04

CyberRota Analysis

This is a high severity vulnerability with a CVSS score of 8.8. Public exploit code or proof-of-concept references have been detected in its references. Its EPSS score suggests a 14.2% probability of exploitation in the next 30 days.

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-2021-31802
Severity
HIGH
CVSS
8.8
EPSS
14.18%

Original NVD Description

NETGEAR R7000 1.0.11.116 devices have a heap-based Buffer Overflow that is exploitable from the local network without authentication. The vulnerability exists within the handling of an HTTP request. An attacker can leverage this to execute code as root. The problem is that a user-provided length value is trusted during a backup.cgi file upload. The attacker must add a \n before the Content-Length header.

Related CVEs

Other vulnerabilities affecting the same vendor(s)