Exploited vulnerability · CISA KEV

Is CVE-2016-3427 exploited? Yes: in CISA KEV since 12 May 2023

Gociux · Oracle Java SE and JRockit · data: CISA KEV, CVE record, FIRST EPSS

Yes. CVE-2016-3427, Oracle Java SE and JRockit Unspecified Vulnerability, is being exploited in the wild. CISA added it to its Known Exploited Vulnerabilities catalog on 12 May 2023, 2577 days after it was published. It affects Oracle Java SE and JRockit. If you run it, CISA's required action is: Apply updates per vendor instructions.

What it is

Oracle Java SE and JRockit contains an unspecified vulnerability that allows remote attackers to affect confidentiality, integrity, and availability via vectors related to Java Management Extensions (JMX). This vulnerability can be exploited through sandboxed Java Web Start applications and sandboxed Java applets. It can also be exploited by supplying data to APIs in the specified component without using sandboxed Java Web Start applications or sandboxed Java applets, such as through a web service.

What to do

1. Check whether you run it. Look for Java SE and JRockit in your asset inventory, including appliances and cloud images. Stack check lists every exploited Oracle CVE at once.
2. Apply the fix. Apply updates per vendor instructions.
3. If you can't patch today, take the affected service off the internet or restrict who can reach it, and check its logs for signs of compromise since 21 Apr 2016.
4. Get told next time. Email alerts when CISA adds a CVE for Oracle.

References

• www.oracle.com/security-alerts/cpuapr2016v3.html
• nvd.nist.gov/vuln/detail/CVE-2016-3427

Sources: CISA KEV (exploitation, ransomware use, required action, due date), the CVE record (publication date, CVSS, CNA), NVD and FIRST EPSS (live score). More: all KEV additions in May 2023 · Oracle scorecard · act-now radar.