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Case File

CVE-2023-43669

HIGH · CVSS 7.5 EPSS 1.62% Public Exploit

Source: NVD + CISA KEV + EPSS (historical backfill) · Published 2023-09-21 · Last synced 2026-08-04

CyberRota Analysis

This is a high severity vulnerability with a CVSS score of 7.5. 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.

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

CVE
CVE-2023-43669
Severity
HIGH
CVSS
7.5
EPSS
1.62%

Original NVD Description

The Tungstenite crate before 0.20.1 for Rust allows remote attackers to cause a denial of service (minutes of CPU consumption) via an excessive length of an HTTP header in a client handshake. The length affects both how many times a parse is attempted (e.g., thousands of times) and the average amount of data for each parse attempt (e.g., millions of bytes).

Related CVEs

Other vulnerabilities affecting the same vendor(s)