CVE-2016-8735: in the CISA KEV catalogue
Apache Tomcat Remote Code Execution Vulnerability. CISA added CVE-2016-8735 to the Known Exploited Vulnerabilities catalogue on 2023-05-12 with a default due date of 2023-06-02. Known ransomware campaign use: Unknown. Forensic triage flag: No.
Apache Tomcat contains an unspecified vulnerability that allows for remote code execution if JmxRemoteLifecycleListener is used and an attacker can reach Java Management Extension (JMX) ports. This CVE exists because this listener wasn't updated for consistency with the Oracle patched issues for CVE-2016-3427 which affected credential types. (CISA description)
- Vendor / product
- Apache Tomcat
- CWE
- CWE-284
- CISA required action
- Apply updates per vendor instructions.
- EPSS
- 90%, percentile 99 (scored 2026-11-03)
EPSS puts about 90 in 100 odds (90%) on exploitation activity being observed in the next 30 days. Its score is higher than or equal to that of 99% of scored CVEs. This is a model estimate about exploitation anywhere, not about your environment.
Vendor and reference links (from CISA)
Your own deadline under CISA BOD 26-04 depends on exposure, automatability and technical impact: work it out with the BOD 26-04 calculator.
Frequently asked questions
Is CVE-2016-8735 in the CISA KEV catalogue?
Yes. CISA added CVE-2016-8735 (Apache Tomcat Remote Code Execution Vulnerability) to the Known Exploited Vulnerabilities catalogue on 2023-05-12. CISA's default due date for it is 2023-06-02.
Is CVE-2016-8735 used in ransomware attacks?
CISA marks known ransomware campaign use as Unknown for CVE-2016-8735. That means CISA lacks confirmation, not that ransomware groups do not use it.
What should I do about CVE-2016-8735?
CISA's required action: Apply updates per vendor instructions.
Sources
- CISA, Known Exploited Vulnerabilities Catalog (accessed 2026-11-03)
- FIRST, Exploit Prediction Scoring System (EPSS) (EPSS by FIRST; scores generated by Empirical Security)
- NVD record for CVE-2016-8735