CVE-2016-4553 Details
client_side.cc in Squid before 3.5.18 and 4.x before 4.0.10 does not properly ignore the Host header when absolute-URI is provided, which allows remote attackers to conduct cache-poisoning attacks via an HTTP request.
View at NVD
Exploit prediction scoring system (EPSS) score for CVE-2016-4553
EPSS (Exploit Prediction Scoring System): EPSS predicts the likelihood that a vulnerability will be exploited in the wild. A higher percentage means a greater chance of an exploit occurring. The EPSS model produces a probability score between 0 and 1 (0 and 100%).
79.97 Probability of exploitation activity being observed over the next 30 days (100th percentile)
CVSS score for CVE-2016-4553
CVSS (Common Vulnerability Scoring System): An open framework owned and managed by FIRST.Org, Inc. that assigns a numerical score from 0 to 10 to software vulnerabilities to indicate their severity.
8.6 High
Products affected by CVE-2016-4553
Squid 2.6.stable7
Squid 2.6.stable9
Squid 2.7.stable2
Squid 2.7.stable3
Squid 2.7.stable4
DVE Score by Bitsight AI
DVE scores complement traditional static scoring systems like CVSS with Bitsight AI powered real-time threat intelligence and underground cyber criminal activity so that security teams can reduce alert fatigue and focus on vulnerabilities most likely to be exploited.
Not available
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CVE-2016-4553 Global Footprint

Top 10 Identified Countries

Country Observations Percentage
US 286,023 52.23%
GB 78,005 14.24%
RO 52,145 9.52%
BR 37,618 6.87%
CA 30,163 5.51%
CN 11,808 2.16%
DE 11,742 2.14%
CH 9,448 1.73%
JP 7,419 1.35%
IN 5,340 0.98%

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CVE-2016-4553 Industry Footprint

Top 10 Identified Industries

*Service provider organizations (typically Technology and Telecommunications) are disproportionally represented in the results given their upstream ownership of end-user infrastructure. See our FAQs.

Industry* Observations Percentage
Technology 38,020 82.53%
Telecommunications 5,836 12.67%
Utilities 1,624 3.53%
Education 289 0.63%
Media/Entertainment 94 0.20%
Government/Politics 78 0.17%
Business Services 30 0.07%
Engineering 25 0.05%
Healthcare/Wellness 13 0.03%
Nonprofit/NGO 13 0.03%

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