Is CVE-2013-2423 being actively exploited?

Yes. CVE-2013-2423 is listed in the CISA Known Exploited Vulnerabilities (KEV) catalog, added on May 25, 2022.

What is the CVSS score for CVE-2013-2423?

CVE-2013-2423 has a CVSS 3.1 base score of 3.7 (LOW).

CVE-2013-2423

LOW · CVSS 3.7CISA KEV: actively exploitedEPSS 85.2%EU EUVD: exploited

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.

Key facts

CVSS score: 3.7 (v3.1)
Severity: LOW
CVSS vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:L/A:N
Weakness (CWE): CWE-284
EPSS score: 85.2% (100th percentile)
In CISA KEV: Yes, added May 25, 2022
In EU EUVD: Yes (EUVD-2013-2369)
Published: April 17, 2013
NVD last modified: June 16, 2026
Status: Analyzed

CISA Known Exploited Vulnerability

Oracle JRE Unspecified Vulnerability

Added to the KEV catalog on May 25, 2022; federal remediation due June 15, 2022.

EU Vulnerability Database (EUVD)

This vulnerability is also tracked by ENISA as EUVD-2013-2369 in the EU Vulnerability Database. ENISA flags it as known exploited. Last updated in EUVD on October 22, 2025.

View on the EU Vulnerability Database

Affected products

canonical / ubuntu linux
opensuse / opensuse
oracle / jre
oracle / jre
oracle / jre
oracle / jre
oracle / jre
oracle / jre
oracle / jre
oracle / jre
oracle / jre
oracle / jre
oracle / jre
oracle / jre
oracle / jre

References

http://blog.fuseyism.com/index.php/2013/04/22/security-icedtea-2-3-9-for-openjdk-7-released/(Broken Link)
http://blog.spiderlabs.com/2013/04/java-is-so-confusing.html(Not Applicable)
http://hg.openjdk.java.net/jdk7u/jdk7u-dev/jdk/rev/b453d9be6b3f(Patch)
http://lists.opensuse.org/opensuse-updates/2013-06/msg00099.html(Third Party Advisory)
http://rhn.redhat.com/errata/RHSA-2013-0752.html(Third Party Advisory)
http://rhn.redhat.com/errata/RHSA-2013-0757.html(Third Party Advisory)
http://security.gentoo.org/glsa/glsa-201406-32.xml(Third Party Advisory)
http://weblog.ikvm.net/PermaLink.aspx?guid=acd2dd6d-1028-4996-95df-efa42ac237f0(Broken Link)
http://www.exploit-db.com/exploits/24976(Third Party Advisory, VDB Entry)
http://www.mandriva.com/security/advisories?name=MDVSA-2013:161(Third Party Advisory)
http://www.oracle.com/technetwork/topics/security/javacpuapr2013-1928497.html(Vendor Advisory)
http://www.ubuntu.com/usn/USN-1806-1(Third Party Advisory)
http://www.us-cert.gov/ncas/alerts/TA13-107A(Third Party Advisory, US Government Resource)
https://bugzilla.redhat.com/show_bug.cgi?id=952398(Issue Tracking)
https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A16700(Broken Link)
https://wiki.mageia.org/en/Support/Advisories/MGASA-2013-0130(Third Party Advisory)
https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2013-2423(US Government Resource)

Last updated September 17, 2026 · Source: NVD, CISA KEV, FIRST.org EPSS

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