6.5 Medium
CVSS3
Attack Vector
NETWORK
Attack Complexity
HIGH
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
LOW
Integrity Impact
HIGH
Availability Impact
NONE
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:H/A:N
6.5 Medium
AI Score
Confidence
High
5.8 Medium
CVSS2
Access Vector
NETWORK
Access Complexity
MEDIUM
Authentication
NONE
Confidentiality Impact
PARTIAL
Integrity Impact
PARTIAL
Availability Impact
NONE
AV:N/AC:M/Au:N/C:P/I:P/A:N
0.002 Low
EPSS
Percentile
57.6%
05/12/2021
Warning
A security bypass vulnerability was found in Apache Tomcat. Malicious users can exploit this vulnerability to bypass security restrictions.
Apache Tomcat 8.5.x earlier than 8.5.66
Apache Tomcat 9.x earlier than 9.0.46
Apache Tomcat 10.0.x earlier than 10.0.6
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
SB
CVE-2021-306406.5High
tomcat.apache.org/security-10.html#Fixed_in_Apache_Tomcat_10.0.6
tomcat.apache.org/security-8.html#Fixed_in_Apache_Tomcat_8.5.66
tomcat.apache.org/security-9.html#Fixed_in_Apache_Tomcat_9.0.46
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-30640
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
6.5 Medium
CVSS3
Attack Vector
NETWORK
Attack Complexity
HIGH
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
LOW
Integrity Impact
HIGH
Availability Impact
NONE
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:H/A:N
6.5 Medium
AI Score
Confidence
High
5.8 Medium
CVSS2
Access Vector
NETWORK
Access Complexity
MEDIUM
Authentication
NONE
Confidentiality Impact
PARTIAL
Integrity Impact
PARTIAL
Availability Impact
NONE
AV:N/AC:M/Au:N/C:P/I:P/A:N
0.002 Low
EPSS
Percentile
57.6%