CVE Daily

CVE-2025-54574

Squid is a caching proxy for the Web. In versions 6.3 and below, Squid is vulner...

Critical CVSS 9.3

Overview

Squid is a caching proxy for the Web. In versions 6.3 and below, Squid is vulnerable to a heap buffer overflow and possible remote code execution attack when processing URN due to incorrect buffer management. This has been fixed in version 6.4. To work around this issue, disable URN access permissions.

CWE: CWE-122 Published: 2025-08-01T18:15:55.390
Risk analysis

This vulnerability is rated 🔴 CRITICAL.

  • CVSS: 9.3 (CRITICAL)
  • Detected tags: buffer, rce (tag impact: VERY HIGH)

Recommended actions:

  • Patch/upgrade immediately (remote code execution).
  • Reduce exposure (WAF/segmentation), minimize attack surface.

Recommended tools

Tags