What is the CVSS score of CVE-2021-30640?

CVE-2021-30640 has a CVSS 3.1 base score of 6.5 (Medium). CVSS vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:H/A:N. EPSS exploitation probability: 9.9%.

Is there a patch available for CVE-2021-30640?

Yes, a patch is available for CVE-2021-30640. Update the affected software to the latest version immediately.

Tomcat CVE-2021-30640

MEDIUM

Improper Encoding or Escaping of Output (CWE-116)

2021-07-12 security@apache.org

Tomcat Apache Authentication Bypass Communications Cloud Native Core Policy Communications Diameter Signaling Router Communications Pricing Design Center Hospitality Cruise Shipboard Property Management System Tekelec Platform Distribution Debian Linux

6.5

CVSS 3.1 · NVD

Severity by source

NVD PRIMARY

6.5 MEDIUM

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

Primary rating from NVD · only source for this CVE.

CVSS VectorNVD

CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:H/A:N

Attack Vector

Network

Attack Complexity

High

Privileges Required

None

User Interaction

None

Scope

Unchanged

Confidentiality

Low

Integrity

High

Availability

None

Lifecycle Timeline

CVE Published

Jul 12, 2021 - 15:15 nvd

MEDIUM 6.5

Blast Radius

ecosystem impact

† from your stack dependencies † transitive graph · vuln.today resolves 4-path depth

1 maven packages depend on org.apache.tomcat:tomcat (1 direct, 0 indirect)

Ecosystem-wide dependent count for version 10.0.0-M1.

DescriptionNVD

A vulnerability in the JNDI Realm of Apache Tomcat allows an attacker to authenticate using variations of a valid user name and/or to bypass some of the protection provided by the LockOut Realm. This issue affects Apache Tomcat 10.0.0-M1 to 10.0.5; 9.0.0.M1 to 9.0.45; 8.5.0 to 8.5.65.

AnalysisAI

A vulnerability in the JNDI Realm of Apache Tomcat allows an attacker to authenticate using variations of a valid user name and/or to bypass some of the protection provided by the LockOut. Rated medium severity (CVSS 6.5), this vulnerability is remotely exploitable, no authentication required.

Technical ContextAI

This vulnerability is classified under CWE-116. A vulnerability in the JNDI Realm of Apache Tomcat allows an attacker to authenticate using variations of a valid user name and/or to bypass some of the protection provided by the LockOut Realm.0.0-M1 to 10.0.5; 9.0.0.M1 to 9.0.45; 8.5.0 to 8.5.65. Affected products include: Apache Tomcat, Oracle Communications Cloud Native Core Policy, Oracle Communications Diameter Signaling Router, Oracle Communications Pricing Design Center, Oracle Hospitality Cruise Shipboard Property Management System.

RemediationAI

A vendor patch is available. Apply the latest security update as soon as possible. Apply vendor patches when available. Implement network segmentation and monitoring as interim mitigations.