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Case File

CVE-2020-11945

CRITICAL · CVSS 9.8 EPSS 27.25% Public Exploit

Source: NVD + CISA KEV + EPSS (historical backfill) · Published 2020-04-23 · 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.

Detected Signals
remote code execution code execution

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

CVE
CVE-2020-11945
Severity
CRITICAL
CVSS
9.8
EPSS
27.25%

Original NVD Description

An issue was discovered in Squid before 5.0.2. A remote attacker can replay a sniffed Digest Authentication nonce to gain access to resources that are otherwise forbidden. This occurs because the attacker can overflow the nonce reference counter (a short integer). Remote code execution may occur if the pooled token credentials are freed (instead of replayed as valid credentials).