CISA KEV · Known exploitedCritical

CVE-2016-8735

Apache Tomcat

Remote code execution is possible with Apache Tomcat before 6.0.48, 7.x before 7.0.73, 8.x before 8.0.39, 8.5.x before 8.5.7, and 9.x before 9.0.0.M12 if JmxRemoteLifecycleListener is used and an attacker can reach JMX ports. The issue exists because this listener wasn't updated for consistency with the CVE-2016-3427 Oracle patch that affected credential types.

CVSS: 9.8
EPSS: 90.3%
CISA KEV: Listed
Published: 2017.04.07

PRIORITY ASSESSMENT

Immediate review

CISA has listed this vulnerability in the Known Exploited Vulnerabilities catalog.

Known exploitationConfirmed by CISA KEV

Exploit probability90.3%

Technical severityCVSS 9.8

Vulnerability overview

Affected product and versions

Product: Apache Tomcat
Affected versions: before 6.0.48, 7.x before 7.0.73, 8.x before 8.0.39, 8.5.x before 8.5.7, 9.x before 9.0.0.M12, < 6.0.48, >= 7.0.0 < 7.0.73, >= 8.0 < 8.0.39, >= 8.5.0 < 8.5.7, 9.0.0, 16.04, 8.0, 3.0.0, 6.1.3, 6.2.0, 6.2.1.0, 9.3.5, 9.3.6, 3.7.1, 3.8.0
Fixed versions: 6.0.48, 7.0.73, 8.0.39, 8.5.7

Recommended response sequence

Confirm exposure before applying a vendor-supported change.

Full remediation guide

CISA required action

Apply updates per vendor instructions.

Due date: 2023.06.02

1
Identify
Confirm that Apache Tomcat and an affected version are present.
2
Prioritize
Combine exploitation signals with asset exposure and business criticality.
3
Remediate
Follow the vendor advisory or supported update path and preserve rollback options.
4
Verify
Recheck the version, service health, access paths, and relevant logs.

Technical data

CVSS vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
CWE: CWE-284
KEV added: 2023.05.12
Ransomware use: 미확인