7.5 High
CVSS3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
HIGH
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
7.2 High
AI Score
Confidence
High
5 Medium
CVSS2
Access Vector
NETWORK
Access Complexity
LOW
Authentication
NONE
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
PARTIAL
AV:N/AC:L/Au:N/C:N/I:N/A:P
0.013 Low
EPSS
Percentile
85.7%
04/06/2021
High
A denial of service vulnerability was found in Apache Tomcat. Malicious users can exploit this vulnerability to cause denial of service.
Apache Tomcat 9.x earlier than 9.0.45
Apache Tomcat 10.0.x earlier than 10.0.5
Apache Tomcat 8.5.x earlier than 8.5.65
Update to the latest version
Tomcat 8.5 Software Downloads
Tomcat 9 Software Downloads
Tomcat 10.0 Software Downloads
Apache Tomcat 8.5.x vulnerabilities
Apache Tomcat 9.x vulnerabilities
Apache Tomcat 10.0.x vulnerabilities
DoS
CVE-2021-306397.5Critical
tomcat.apache.org/security-10.html#Fixed_in_Apache_Tomcat_10.0.5
tomcat.apache.org/security-8.html#Fixed_in_Apache_Tomcat_8.5.65
tomcat.apache.org/security-9.html#Fixed_in_Apache_Tomcat_9.0.45
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-30639
statistics.securelist.com/vulnerability-scan/month
threats.kaspersky.com/en/product/Apache-Tomcat/
tomcat.apache.org/download-10.cgi
tomcat.apache.org/download-80.cgi
tomcat.apache.org/download-90.cgi
7.5 High
CVSS3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
HIGH
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
7.2 High
AI Score
Confidence
High
5 Medium
CVSS2
Access Vector
NETWORK
Access Complexity
LOW
Authentication
NONE
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
PARTIAL
AV:N/AC:L/Au:N/C:N/I:N/A:P
0.013 Low
EPSS
Percentile
85.7%