How severe is CVE-2012-5076?

CVE-2012-5076 has a CVSS score of 9.8/10, rated CRITICAL. Immediate patching is strongly recommended.

Which packages are affected by CVE-2012-5076?

Affected package information for CVE-2012-5076 is not yet fully mapped. Check the official advisory links for details.

How do I fix CVE-2012-5076?

No fixed version has been published for CVE-2012-5076 yet. Monitor the advisory for updates, apply mitigations recommended by the vendor, and use O3 Security to track when a fix becomes available in your stack.

Is CVE-2012-5076 actively exploited in the wild?

Yes. There are 5 known exploit references for CVE-2012-5076, including 2 documented proof-of-concept exploits on Exploit-DB and 3 in-the-wild exploitations observed on GitHub and other sources. Treat this as actively exploitable and prioritize patching immediately. All exploit code should only be run in an isolated sandbox environment for research or authorized testing — never against production systems without explicit written authorization.

What is the EPSS score for CVE-2012-5076?

CVE-2012-5076 has an EPSS (Exploit Prediction Scoring System) score of 91.4%, placing it in the 100th percentile of all CVEs. EPSS is maintained by FIRST.org and estimates the probability that a vulnerability will be exploited in the wild within the next 30 days. A score above 50% indicates significantly elevated exploitation risk — immediate patching is strongly recommended.

Is CVE-2012-5076 in the CISA Known Exploited Vulnerabilities catalog?

Yes. CVE-2012-5076 (Oracle Java SE Sandbox Bypass Vulnerability) was added to CISA's Known Exploited Vulnerabilities (KEV) catalog on 2022-03-28. CISA required all US federal civilian agencies to remediate this vulnerability by 2022-04-18. The required action was: Apply updates per vendor instructions. Being listed in the KEV catalog is the strongest possible confirmation of active exploitation — treat this as a critical priority.

What type of vulnerability is CVE-2012-5076?

CVE-2012-5076 is classified as CWE-284 (CWE-284). This weakness type describe the underlying flaw category, which helps determine the potential impact and the right class of mitigation.

Which products and versions are affected by CVE-2012-5076?

CVE-2012-5076 affects oracle jre (1 version, e.g. 1.7.0); suse linux enterprise desktop (1 version, e.g. 11). Check the affected-products list on this page against your deployed version to confirm exposure.

When was CVE-2012-5076 published, and has it been updated?

CVE-2012-5076 was published on October 16, 2012 and was last updated on April 21, 2026. Advisory data evolves as severity scores, affected ranges, and exploit intelligence are revised — always check the latest version of the advisory before acting.

CISA KEV·Added 2022-03-28 — agencies required to remediate by 2022-04-18

CVE-2012-5076

CRITICAL

Unspecified vulnerability in the Java Runtime Environment (JRE) component in Oracle Java SE 7 Update 7 and earlier allows remote attackers to affect confidentiality, integrity, and…

Published

Oct 16, 2012

Updated

Apr 21, 2026

Affected

0 pkgs

Patched

None yet

Exploits

5 known

EPSS Exploitation Probability

via FIRST.org ↗

91.4%probability of exploitation in next 30 days

Very High Risk100th percentile-0.00%

EPSS (Exploit Prediction Scoring System) is a daily probability model maintained by FIRST.org. It estimates the likelihood a CVE will be exploited in production environments within the next 30 days, derived from real-world threat intelligence signals.

Description

Unspecified vulnerability in the Java Runtime Environment (JRE) component in Oracle Java SE 7 Update 7 and earlier allows remote attackers to affect confidentiality, integrity, and availability, related to JAX-WS.

Affected Products

2 products · 9 configurations

Application

jreoracle

1 version

1.7.0

linux enterprise desktopsuse

1 version

Exploits & PoCs

Research use only. For defensive security, authorized penetration testing, and academic research only. Never execute exploit code against systems without explicit written authorization.

EDB-22657remotemultiple✓ Verified

Java Applet - JAX-WS Remote Code Execution (Metasploit)

by Metasploit · Nov 13, 2012

Exploit-DB Source

EDB-24309remotejava✓ Verified

Java Applet - AverageRangeStatisticImpl Remote Code Execution (Metasploit)

by Metasploit · Jan 24, 2013

Exploit-DB Source

Frequently Asked Questions

O3 Security · Impact-Aware SCA

Is CVE-2012-5076 in your stack?

O3 detects CVE-2012-5076 across dependencies and uses function-level reachability to confirm whether the vulnerable code path is actually reachable — not just present. No false positives.

Scan my stack How O3 SCA works

CVSS Score

9.8/10

CVSS v3 base score

Vector breakdown

AV:Attack Vector

Network

AC:Attack Complexity

Low

PR:Privileges Required

None

UI:User Interaction

None

S:Scope

Unchanged

C:Confidentiality

High

I:Integrity

High

A:Availability

High

Raw vector

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

CWE Classification

CWE-284CWE-284

Weaponization

No known public exploit tooling found.

Timeline

Disclosed

Oct 16, 2012

First exploit

Nov 13, 2012

KEV added

Mar 28, 2022

Last updated

Apr 21, 2026

Identifiers

CVE-2012-5076

Data from OSV.dev, enriched by O3 Security. Refreshed hourly.