ZeusQA
Start free

Known exploited vulnerability

CVE-2016-8735

criticalCVSS 3.1 9.8In CISA KEVEPSS 90%Published · Apache Software Foundation

The short answer

CVE-2016-8735 affects Apache Software Foundation Apache Tomcat and is rated critical (CVSS 9.8). CISA added it to the Known Exploited Vulnerabilities catalog on 2023-05-12: attackers are using it, so patch it first. Fixed versions are published for tomcat-catalina-jmx-remote (6.0.48, 7.0.73, 8.0.39) and tomcat-catalina (6.0.48, 7.0.73, 8.0.39).

What it is

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.

Severity

9.8 critical

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

Exploited (CISA KEV)

Yes, since May 12, 2023

Federal due date Jun 2, 2023

EPSS, next 30 days

90%

Higher than 100% of scored CVEs

How it can be exploited

Attack vector
Network
Attack complexity
Low
Privileges required
None
User interaction
None
Scope
Unchanged
Confidentiality impact
High
Integrity impact
High
Availability impact
High

What CISA says to do

Apply updates per vendor instructions.

Affected packages and fixed versions

PackageEcosystemFixed inAdvisory
org.apache.tomcat:tomcat-catalina-jmx-remoteMaven6.0.48, 7.0.73, 8.0.39, 8.5.7, 9.0.0.M12GHSA-cw54-59pw-4g8c
org.apache.tomcat:tomcat-catalinaMaven6.0.48, 7.0.73, 8.0.39, 8.5.7, 9.0.0.M12GHSA-cw54-59pw-4g8c

Is it in your code? Drop your lockfile into the free vulnerability check, or let vulnerability watch check your repository every day and open the upgrade as a pull request.

Affected products

Apache Tomcat. NVD's record lists the exact affected versions.

References

Questions

Is CVE-2016-8735 being exploited?

Yes. CISA added CVE-2016-8735 to its Known Exploited Vulnerabilities catalog on 2023-05-12, with a federal remediation due date of 2023-06-02.

How do I fix CVE-2016-8735?

Upgrade to a fixed version: org.apache.tomcat:tomcat-catalina-jmx-remote (Maven) 6.0.48 or 7.0.73 or 8.0.39 or 8.5.7 or 9.0.0.M12; org.apache.tomcat:tomcat-catalina (Maven) 6.0.48 or 7.0.73 or 8.0.39 or 8.5.7 or 9.0.0.M12. CISA's required action: Apply updates per vendor instructions.

From NVD, CISA KEV, FIRST EPSS and OSV.dev, checked . Status on NVD: Analyzed. The description is NVD's text, quoted as published.

Related

Know the day a CVE lands in your code

Connect a GitHub repository and ZeusQA checks its dependencies daily, briefs each advisory and opens the fix. Three test runs free, no card.

Start freeSee how a run works