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Case File

CVE-2019-18676

HIGH · CVSS 7.5 EPSS 9.18% Public Exploit

Source: NVD + CISA KEV + EPSS (historical backfill) · Published 2019-11-26 · 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.

GitHub PoC Links
github.com ↗

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

CVE
CVE-2019-18676
Severity
HIGH
CVSS
7.5
EPSS
9.18%

Original NVD Description

An issue was discovered in Squid 3.x and 4.x through 4.8. Due to incorrect input validation, there is a heap-based buffer overflow that can result in Denial of Service to all clients using the proxy. Severity is high due to this vulnerability occurring before normal security checks; any remote client that can reach the proxy port can trivially perform the attack via a crafted URI scheme.