How severe is CVE-2013-0431?

CVE-2013-0431 has a CVSS score of 5.3/10, rated MEDIUM. Review your exposure and patch according to your risk tolerance.

Which packages are affected by CVE-2013-0431?

Affected package information for CVE-2013-0431 is not yet fully mapped. Check the official advisory links for details.

How do I fix CVE-2013-0431?

No fixed version has been published for CVE-2013-0431 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-2013-0431 actively exploited in the wild?

Yes. There are 4 known exploit references for CVE-2013-0431, including 1 documented proof-of-concept exploit 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-2013-0431?

CVE-2013-0431 has an EPSS (Exploit Prediction Scoring System) score of 91.5%, 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-2013-0431 in the CISA Known Exploited Vulnerabilities catalog?

Yes. CVE-2013-0431 (Oracle JRE Sandbox Bypass Vulnerability) was added to CISA's Known Exploited Vulnerabilities (KEV) catalog on 2022-05-25. CISA required all US federal civilian agencies to remediate this vulnerability by 2022-06-15. The required action was: Apply updates per vendor instructions. This CVE has been used in known ransomware campaigns. 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-2013-0431?

CVE-2013-0431 is classified as CWE-693 (CWE-693). 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-2013-0431?

CVE-2013-0431 affects oracle jre (1 version, e.g. 1.7.0); oracle openjdk (1 version, e.g. 7). Check the affected-products list on this page against your deployed version to confirm exposure.

When was CVE-2013-0431 published, and has it been updated?

CVE-2013-0431 was published on January 31, 2013 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 2022-05-25 — agencies required to remediate by 2022-06-15 · Ransomware

CVE-2013-0431

MEDIUM

Unspecified vulnerability in the Java Runtime Environment (JRE) component in Oracle Java SE 7 through Update 11, and OpenJDK 7, allows user-assisted remote attackers to bypass the Java…

Published

Jan 31, 2013

Updated

Apr 21, 2026

Affected

0 pkgs

Patched

None yet

Exploits

4 known

EPSS Exploitation Probability

via FIRST.org ↗

91.5%probability of exploitation in next 30 days

Very High Risk100th percentile0.00%

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 through Update 11, and OpenJDK 7, allows user-assisted remote attackers to bypass the Java security sandbox via unspecified vectors related to JMX, aka "Issue 52," a different vulnerability than CVE-2013-1490.

Affected Products

2 products · 12 configurations

Application

jreoracle

1 version

1.7.0

Application

openjdkoracle

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-24539remotemultiple✓ Verified

Java Applet JMX - Remote Code Execution (Metasploit) (2)

by Metasploit · Feb 25, 2013

Exploit-DB Source

Frequently Asked Questions

O3 Security · Impact-Aware SCA

Is CVE-2013-0431 in your stack?

O3 detects CVE-2013-0431 across dependencies and uses function-level reachability to confirm whether the vulnerable code path is actually reachable — not just present. No false positives.

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