How severe is CVE-2013-2423?

CVE-2013-2423 has a CVSS score of 3.7/10, rated LOW. Review your exposure and patch according to your risk tolerance.

Which packages are affected by CVE-2013-2423?

Affected package information for CVE-2013-2423 is not yet fully mapped. Check the official advisory links for details.

How do I fix CVE-2013-2423?

No fixed version has been published for CVE-2013-2423 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-2013-2423 actively exploited in the wild?

Yes. There are 4 known exploit references for CVE-2013-2423, 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-2013-2423?

CVE-2013-2423 has an EPSS (Exploit Prediction Scoring System) score of 93.4%, 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-2013-2423 in the CISA Known Exploited Vulnerabilities catalog?

Yes. CVE-2013-2423 (Oracle JRE Unspecified 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. 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-2013-2423?

CVE-2013-2423 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-2013-2423?

CVE-2013-2423 affects canonical ubuntu linux (1 version, e.g. 12.10); opensuse opensuse (1 version, e.g. 12.3); oracle jre (1 version, e.g. 1.7.0). Check the affected-products list on this page against your deployed version to confirm exposure.

When was CVE-2013-2423 published, and has it been updated?

CVE-2013-2423 was published on April 17, 2013 and was last updated on April 22, 2026. Advisory data evolves as severity scores, affected ranges, and exploit intelligence are revised — always check the latest version of the advisory before acting.

CVE-2013-2423: Ubuntu Linux CWE-284 (Low 3.7)

EPSS Exploitation Probability

via FIRST.org ↗

93.4%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 Update 17 and earlier, and OpenJDK 7, allows remote attackers to affect integrity via unknown vectors related to HotSpot. NOTE: the previous information is from the April 2013 CPU. Oracle has not commented on claims from the original researcher that this vulnerability allows remote attackers to bypass permission checks by the MethodHandles method and modify arbitrary public final fields using reflection and type confusion, as demonstrated using integer and double fields to disable the security manager.

Affected Products

3 products · 15 configurations

OS

ubuntu linuxcanonical

1 version

12.10

OS

opensuseopensuse

1 version

12.3

Application

jreoracle

1 version

1.7.0

Frequently Asked Questions

Unspecified vulnerability in the Java Runtime Environment (JRE) component in Oracle Java SE 7 Update 17 and earlier, and OpenJDK 7, allows remote attackers to affect integrity via unknown vectors related to HotSpot. NOTE: the previous information is from the April 2013 CPU. Oracle has not commented on claims from the original researcher that this vulnerability allows remote attackers to bypass permission checks by the MethodHandles method and modify arbitrary public final fields using reflection and type confusion, as demonstrated using integer and double fields to disable the security manage

O3 Security · Impact-Aware SCA

Is CVE-2013-2423 in your stack?

O3 detects CVE-2013-2423 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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