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CVE-2016-4556

7.5
HIGHCVSS v3.1 Base Score
56.86%
MEDIUM RiskEPSS (98th percentile)

Double free vulnerability in Esi.cc in Squid 3.x before 3.5.18 and 4.x before 4.0.10 allows remote servers to cause a denial of service (crash) via a crafted Edge Side Includes (ESI) response.

Published: 5/10/2016
Modified: 4/12/2025
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Vulnerability Summary

CVSS v3 Score

7.5HIGH

CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

EPSS Score (Exploitation Probability)

56.86%MEDIUM Exploitation Risk
98th percentile

This vulnerability has a 56.86% probability of being exploited in the next 30 days, ranking higher than 98% of all scored CVEs.

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