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CVE-2016-3427 — Unspecified vulnerability in Oracle Java SE 6u113, 7u99, and 8u77; Java SE Embedded 8u77;…

Key facts

CVE-2016-3427 is a Critical (9.8) vulnerability: Unspecified vulnerability in Oracle Java SE 6u113, 7u99, and 8u77; Java SE Embedded 8u77;…. This entry ships a detection-only PoC and a Docker test lab. It is on the CISA Known Exploited Vulnerabilities (KEV) catalog (added 2023-05-12), confirming active exploitation in the wild.

Actively exploited — on the CISA KEV catalog

CVE-2016-3427 is listed on the CISA Known Exploited Vulnerabilities (KEV) catalog (added 2023-05-12), confirming exploitation in the wild. Federal remediation deadline: 2023-06-02. Prioritise patching and deploy the detection and prevention rules below.
CVE CVE-2016-3427
Severity Critical (9.8)
CISA KEV Actively exploited (added 2023-05-12)
Detection / prevention —
PoC poc.py
Source 2016/CVE-2016-3427/

Details

English | 한국어

Description

Unspecified vulnerability in Oracle Java SE 6u113, 7u99, and 8u77; Java SE Embedded 8u77; and JRockit R28.3.9 allows remote attackers to affect confidentiality, integrity, and availability via vectors related to JMX.

Vulnerability Details

Property Value
CVE ID CVE-2016-3427
CVSS Score 9.8

Proof of Concept

Download

# Download PoC script
curl -O https://raw.githubusercontent.com/fankh/vulnerability-poc/main/2016/CVE-2016-3427/poc.py

Usage

# Run PoC against target
python3 poc.py --target <TARGET_URL>

# With authentication
python3 poc.py --target <TARGET_URL> --username <USER> --password <PASS>

⚠️ Warning: This PoC is for authorized security testing only. It uses detection-only techniques and does not exploit or damage target systems.

Test Lab

This repository includes a Docker-based test environment with both vulnerable and patched applications.

Quick Start

# Clone and navigate to CVE directory
cd CVE-2016-3427

# Start both applications
docker-compose up -d

# Run tests
./run-tests.sh    # Linux/Mac
./run-tests.ps1   # Windows PowerShell

Application Endpoints

Application URL Status
Vulnerable App http://localhost:8080 Shows vulnerability
Patched App http://localhost:8081 Demonstrates fix

Directory Structure

├── README.md           # English documentation
├── README_KO.md        # Korean documentation
├── poc.py              # PoC detection script
├── docker-compose.yml  # Container orchestration
├── run-tests.sh        # Linux/Mac test runner
├── run-tests.ps1       # Windows test runner
├── vulnerable-app/     # Vulnerable version
│   ├── app.py
│   ├── Dockerfile
│   └── requirements.txt
└── patched-app/        # Fixed version
    ├── app.py
    ├── Dockerfile
    └── requirements.txt

References

  • http://lists.opensuse.org/opensuse-security-announce/2016-05/msg00006.html
  • http://lists.opensuse.org/opensuse-security-announce/2016-05/msg00009.html
  • http://lists.opensuse.org/opensuse-security-announce/2016-05/msg00012.html
  • http://lists.opensuse.org/opensuse-security-announce/2016-05/msg00021.html
  • http://lists.opensuse.org/opensuse-security-announce/2016-05/msg00022.html
  • http://lists.opensuse.org/opensuse-security-announce/2016-05/msg00026.html
  • http://lists.opensuse.org/opensuse-security-announce/2016-05/msg00027.html
  • http://lists.opensuse.org/opensuse-security-announce/2016-05/msg00039.html
  • http://lists.opensuse.org/opensuse-security-announce/2016-05/msg00040.html
  • http://lists.opensuse.org/opensuse-security-announce/2016-05/msg00042.html
  • http://lists.opensuse.org/opensuse-security-announce/2016-05/msg00058.html
  • http://lists.opensuse.org/opensuse-security-announce/2016-05/msg00059.html
  • http://lists.opensuse.org/opensuse-security-announce/2016-05/msg00061.html
  • http://lists.opensuse.org/opensuse-security-announce/2016-05/msg00067.html
  • http://lists.opensuse.org/opensuse-security-announce/2016-06/msg00002.html
  • http://rhn.redhat.com/errata/RHSA-2016-0650.html
  • http://rhn.redhat.com/errata/RHSA-2016-0651.html
  • http://rhn.redhat.com/errata/RHSA-2016-0675.html
  • http://rhn.redhat.com/errata/RHSA-2016-0676.html
  • http://rhn.redhat.com/errata/RHSA-2016-0677.html
  • http://rhn.redhat.com/errata/RHSA-2016-0678.html
  • http://rhn.redhat.com/errata/RHSA-2016-0679.html
  • http://rhn.redhat.com/errata/RHSA-2016-0701.html
  • http://rhn.redhat.com/errata/RHSA-2016-0702.html
  • http://rhn.redhat.com/errata/RHSA-2016-0708.html
  • http://rhn.redhat.com/errata/RHSA-2016-0716.html
  • http://rhn.redhat.com/errata/RHSA-2016-0723.html
  • http://rhn.redhat.com/errata/RHSA-2016-1039.html
  • http://www.debian.org/security/2016/dsa-3558
  • http://www.openwall.com/lists/oss-security/2020/08/31/1
  • http://www.oracle.com/technetwork/security-advisory/cpuapr2016v3-2985753.html
  • http://www.oracle.com/technetwork/topics/security/linuxbulletinapr2016-2952096.html
  • http://www.securityfocus.com/bid/86421
  • http://www.securitytracker.com/id/1035596
  • http://www.securitytracker.com/id/1037331
  • http://www.ubuntu.com/usn/USN-2963-1
  • http://www.ubuntu.com/usn/USN-2964-1
  • http://www.ubuntu.com/usn/USN-2972-1
  • https://access.redhat.com/errata/RHSA-2016:1430
  • https://access.redhat.com/errata/RHSA-2017:1216
  • https://kc.mcafee.com/corporate/index?page=content&id=SB10159
  • https://lists.apache.org/thread.html/343558d982879bf88ec20dbf707f8c11255f8e219e81d45c4f8d0551%40%3Cdev.tomcat.apache.org%3E
  • https://lists.apache.org/thread.html/37220405a377c0182d2afdbc36461c4783b2930fbeae3a17f1333113%40%3Cdev.tomcat.apache.org%3E
  • https://lists.apache.org/thread.html/388a323769f1dff84c9ec905455aa73fbcb20338e3c7eb131457f708%40%3Cdev.tomcat.apache.org%3E
  • https://lists.apache.org/thread.html/39ae1f0bd5867c15755a6f959b271ade1aea04ccdc3b2e639dcd903b%40%3Cdev.tomcat.apache.org%3E
  • https://lists.apache.org/thread.html/3d19773b4cf0377db62d1e9328bf9160bf1819f04f988315086931d7%40%3Cdev.tomcat.apache.org%3E
  • https://lists.apache.org/thread.html/6af47120905aa7d8fe12f42e8ff2284fb338ba141d3b77b8c7cb61b3%40%3Cdev.tomcat.apache.org%3E
  • https://lists.apache.org/thread.html/845312a10aabbe2c499fca94003881d2c79fc993d85f34c1f5c77424%40%3Cdev.tomcat.apache.org%3E
  • https://lists.apache.org/thread.html/88855876c33f2f9c532ffb75bfee570ccf0b17ffa77493745af9a17a%40%3Cdev.tomcat.apache.org%3E
  • https://lists.apache.org/thread.html/b5e3f51d28cd5d9b1809f56594f2cf63dcd6a90429e16ea9f83bbedc%40%3Cdev.tomcat.apache.org%3E
  • https://lists.apache.org/thread.html/b84ad1258a89de5c9c853c7f2d3ad77e5b8b2930be9e132d5cef6b95%40%3Cdev.tomcat.apache.org%3E
  • https://lists.apache.org/thread.html/b8a1bf18155b552dcf9a928ba808cbadad84c236d85eab3033662cfb%40%3Cdev.tomcat.apache.org%3E
  • https://lists.apache.org/thread.html/r03c597a64de790ba42c167efacfa23300c3d6c9fe589ab87fe02859c%40%3Cdev.tomcat.apache.org%3E
  • https://lists.apache.org/thread.html/r587e50b86c1a96ee301f751d50294072d142fd6dc08a8987ae9f3a9b%40%3Cdev.tomcat.apache.org%3E
  • https://lists.apache.org/thread.html/r5f48b16573a11fdf0b557cc3d1d71423ecde8ee771c29f32334fa948%40%3Cdev.cassandra.apache.org%3E
  • https://lists.apache.org/thread.html/r9136ff5b13e4f1941360b5a309efee2c114a14855578c3a2cbe5d19c%40%3Cdev.tomcat.apache.org%3E
  • https://lists.apache.org/thread.html/rc3abf40b06c511d5693baf707d6444bf7745e6a1e343e6f530a12258%40%3Cuser.cassandra.apache.org%3E
  • https://security.gentoo.org/glsa/201606-18
  • https://security.netapp.com/advisory/ntap-20160420-0001/
  • http://lists.opensuse.org/opensuse-security-announce/2016-05/msg00006.html
  • http://lists.opensuse.org/opensuse-security-announce/2016-05/msg00009.html
  • http://lists.opensuse.org/opensuse-security-announce/2016-05/msg00012.html
  • http://lists.opensuse.org/opensuse-security-announce/2016-05/msg00021.html
  • http://lists.opensuse.org/opensuse-security-announce/2016-05/msg00022.html
  • http://lists.opensuse.org/opensuse-security-announce/2016-05/msg00026.html
  • http://lists.opensuse.org/opensuse-security-announce/2016-05/msg00027.html
  • http://lists.opensuse.org/opensuse-security-announce/2016-05/msg00039.html
  • http://lists.opensuse.org/opensuse-security-announce/2016-05/msg00040.html
  • http://lists.opensuse.org/opensuse-security-announce/2016-05/msg00042.html
  • http://lists.opensuse.org/opensuse-security-announce/2016-05/msg00058.html
  • http://lists.opensuse.org/opensuse-security-announce/2016-05/msg00059.html
  • http://lists.opensuse.org/opensuse-security-announce/2016-05/msg00061.html
  • http://lists.opensuse.org/opensuse-security-announce/2016-05/msg00067.html
  • http://lists.opensuse.org/opensuse-security-announce/2016-06/msg00002.html
  • http://rhn.redhat.com/errata/RHSA-2016-0650.html
  • http://rhn.redhat.com/errata/RHSA-2016-0651.html
  • http://rhn.redhat.com/errata/RHSA-2016-0675.html
  • http://rhn.redhat.com/errata/RHSA-2016-0676.html
  • http://rhn.redhat.com/errata/RHSA-2016-0677.html
  • http://rhn.redhat.com/errata/RHSA-2016-0678.html
  • http://rhn.redhat.com/errata/RHSA-2016-0679.html
  • http://rhn.redhat.com/errata/RHSA-2016-0701.html
  • http://rhn.redhat.com/errata/RHSA-2016-0702.html
  • http://rhn.redhat.com/errata/RHSA-2016-0708.html
  • http://rhn.redhat.com/errata/RHSA-2016-0716.html
  • http://rhn.redhat.com/errata/RHSA-2016-0723.html
  • http://rhn.redhat.com/errata/RHSA-2016-1039.html
  • http://www.debian.org/security/2016/dsa-3558
  • http://www.openwall.com/lists/oss-security/2020/08/31/1
  • http://www.oracle.com/technetwork/security-advisory/cpuapr2016v3-2985753.html
  • http://www.oracle.com/technetwork/topics/security/linuxbulletinapr2016-2952096.html
  • http://www.securityfocus.com/bid/86421
  • http://www.securitytracker.com/id/1035596
  • http://www.securitytracker.com/id/1037331
  • http://www.ubuntu.com/usn/USN-2963-1
  • http://www.ubuntu.com/usn/USN-2964-1
  • http://www.ubuntu.com/usn/USN-2972-1
  • https://access.redhat.com/errata/RHSA-2016:1430
  • https://access.redhat.com/errata/RHSA-2017:1216
  • https://kc.mcafee.com/corporate/index?page=content&id=SB10159
  • https://lists.apache.org/thread.html/343558d982879bf88ec20dbf707f8c11255f8e219e81d45c4f8d0551%40%3Cdev.tomcat.apache.org%3E
  • https://lists.apache.org/thread.html/37220405a377c0182d2afdbc36461c4783b2930fbeae3a17f1333113%40%3Cdev.tomcat.apache.org%3E
  • https://lists.apache.org/thread.html/388a323769f1dff84c9ec905455aa73fbcb20338e3c7eb131457f708%40%3Cdev.tomcat.apache.org%3E
  • https://lists.apache.org/thread.html/39ae1f0bd5867c15755a6f959b271ade1aea04ccdc3b2e639dcd903b%40%3Cdev.tomcat.apache.org%3E
  • https://lists.apache.org/thread.html/3d19773b4cf0377db62d1e9328bf9160bf1819f04f988315086931d7%40%3Cdev.tomcat.apache.org%3E
  • https://lists.apache.org/thread.html/6af47120905aa7d8fe12f42e8ff2284fb338ba141d3b77b8c7cb61b3%40%3Cdev.tomcat.apache.org%3E
  • https://lists.apache.org/thread.html/845312a10aabbe2c499fca94003881d2c79fc993d85f34c1f5c77424%40%3Cdev.tomcat.apache.org%3E
  • https://lists.apache.org/thread.html/88855876c33f2f9c532ffb75bfee570ccf0b17ffa77493745af9a17a%40%3Cdev.tomcat.apache.org%3E
  • https://lists.apache.org/thread.html/b5e3f51d28cd5d9b1809f56594f2cf63dcd6a90429e16ea9f83bbedc%40%3Cdev.tomcat.apache.org%3E
  • https://lists.apache.org/thread.html/b84ad1258a89de5c9c853c7f2d3ad77e5b8b2930be9e132d5cef6b95%40%3Cdev.tomcat.apache.org%3E
  • https://lists.apache.org/thread.html/b8a1bf18155b552dcf9a928ba808cbadad84c236d85eab3033662cfb%40%3Cdev.tomcat.apache.org%3E
  • https://lists.apache.org/thread.html/r03c597a64de790ba42c167efacfa23300c3d6c9fe589ab87fe02859c%40%3Cdev.tomcat.apache.org%3E
  • https://lists.apache.org/thread.html/r587e50b86c1a96ee301f751d50294072d142fd6dc08a8987ae9f3a9b%40%3Cdev.tomcat.apache.org%3E
  • https://lists.apache.org/thread.html/r5f48b16573a11fdf0b557cc3d1d71423ecde8ee771c29f32334fa948%40%3Cdev.cassandra.apache.org%3E
  • https://lists.apache.org/thread.html/r9136ff5b13e4f1941360b5a309efee2c114a14855578c3a2cbe5d19c%40%3Cdev.tomcat.apache.org%3E
  • https://lists.apache.org/thread.html/rc3abf40b06c511d5693baf707d6444bf7745e6a1e343e6f530a12258%40%3Cuser.cassandra.apache.org%3E
  • https://security.gentoo.org/glsa/201606-18
  • https://security.netapp.com/advisory/ntap-20160420-0001/
  • https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2016-3427

Generated by PoC Generator on 2026-07-04T12:24:13.935241777

Frequently asked questions

What is CVE-2016-3427?

CVE-2016-3427 is a Critical (9.8) vulnerability: Unspecified vulnerability in Oracle Java SE 6u113, 7u99, and 8u77; Java SE Embedded 8u77;…. This entry ships a detection-only PoC and a Docker test lab. It is on the CISA Known Exploited Vulnerabilities (KEV) catalog (added 2023-05-12), confirming active exploitation in the wild.

How do I detect CVE-2016-3427?

Run the detection-only PoC included with this entry against your Docker test lab to confirm whether a target is affected; pair it with your own IDS logging.

How do I block or mitigate CVE-2016-3427?

Upgrade to a fixed version per the vendor advisory; the NVD record lists the affected versions. Use the included PoC to verify your remediation.

Is CVE-2016-3427 actively exploited?

Yes. CVE-2016-3427 is on the CISA Known Exploited Vulnerabilities (KEV) catalog, added 2023-05-12, which means it has been exploited in the wild. CISA set a federal remediation deadline of 2023-06-02. Prioritise patching and deploy the detection and prevention rules above.

For authorized security testing and research only. See the full source and NVD record.