CVE-2011-4858 Details
Apache Tomcat before 5.5.35, 6.x before 6.0.35, and 7.x before 7.0.23 computes hash values for form parameters without restricting the ability to trigger hash collisions predictably, which allows remote attackers to cause a denial of service (CPU consumption) by sending many crafted parameters.
View at NVD
Exploit prediction scoring system (EPSS) score for CVE-2011-4858
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%).
79.71 Probability of exploitation activity being observed over the next 30 days (100th percentile)
CVSS score for CVE-2011-4858
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.
5 Medium
Products affected by CVE-2011-4858
Tomcat 6.0.14
Tomcat 6.0.16
Tomcat 6.0.18
Tomcat 6.0.2
Tomcat 6.0.20
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-2011-4858 Global Footprint

Top 10 Identified Countries

Country Observations Percentage
US 405 16.88%
CN 399 16.63%
KR 285 11.88%
BR 110 4.59%
CA 107 4.46%
DK 94 3.92%
DE 71 2.96%
TW 64 2.67%
BG 46 1.92%
ES 45 1.88%

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CVE-2011-4858 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 816 56.01%
Telecommunications 452 31.02%
Business Services 44 3.02%
Education 41 2.81%
Government/Politics 38 2.61%
Retail 17 1.17%
Manufacturing 16 1.10%
Transportation 8 0.55%
Finance 5 0.34%
Tourism/Hospitality 4 0.27%

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