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Case File

CVE-2017-2921

CRITICAL · CVSS 9.8 EPSS 2.42% Public Exploit

Source: NVD + CISA KEV + EPSS (historical backfill) · Published 2017-11-07 · Last synced 2026-08-04

CyberRota Analysis

This is a critical severity vulnerability with a CVSS score of 9.8. Public exploit code or proof-of-concept references have been detected in its references. It may be remotely exploitable. It may lead to a denial-of-service condition.

Public Exploit Signal

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

Detected Signals
exploit remote code execution code execution

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

CVE
CVE-2017-2921
Severity
CRITICAL
CVSS
9.8
EPSS
2.42%

Original NVD Description

An exploitable memory corruption vulnerability exists in the Websocket protocol implementation of Cesanta Mongoose 6.8. A specially crafted websocket packet can cause an integer overflow, leading to a heap buffer overflow and resulting in denial of service and potential remote code execution. An attacker needs to send a specially crafted websocket packet over network to trigger this vulnerability.

Related CVEs

Other vulnerabilities affecting the same vendor(s)