What is CVE-2013-2423?

CVE-2013-2423 is a low-severity vulnerability in Oracle Jre, classified under Improper Access Control. CVSS score: 3.7/10. Published 2013-04-17.

How severe is CVE-2013-2423?

Low severity. CVSS v3 base score is 3.7 out of 10.

Is CVE-2013-2423 known to be exploited?

Yes. CVE-2013-2423 is listed in the CISA Known Exploited Vulnerabilities catalog (added 2022-05-25), indicating it is being actively exploited. 5 public proof-of-concept repositories are indexed.

Vulnerability in Oracle Jre

CVE-2013-2423

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.

Published 2013-04-17 · last modified 2026-06-16.

CVSS v3 metric

CVSS v3 base score 3.7 (Low). Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:L/A:N.

EPSS exploit prediction

EPSS: 0.852 (99.7th percentile), scored 2026-10-15.

High probability of exploitation in the next 30 days — patch promptly. 100th percentile — 99.7% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.852 · newest: 0.852 · change: 0.000

Affected products

Oracle Jre — versions 1.7.0
Canonical Ubuntu Linux — versions 12.10
openSUSE — versions 12.3

Weakness classification (CWE)

CWE-284 — Improper Access Control

CISA KEV (Known Exploited Vulnerabilities)

This CVE is on the CISA KEV catalog, added on 2022-05-25. CISA KEV inclusion means CISA has confirmed in-the-wild exploitation; US federal agencies are required to remediate within a published due date.

BOD 22-01 due date: 2022-06-15.

Required action: Apply updates per vendor instructions.

Public proof-of-concept exploits

References

security.gentoo.org/glsa/glsa-201406-32.xml (vendor-advisory, Third Party Advisory)
weblog.ikvm.net/PermaLink.aspx (Broken Link)
www.us-cert.gov/ncas/alerts/TA13-107A (US Government Resource, Third Party Advisory, third-party-advisory)
wiki.mageia.org/en/Support/Advisories/MGASA-2013-0130 (Third Party Advisory)
rhn.redhat.com/errata/RHSA-2013-0757.html (vendor-advisory, Third Party Advisory)
hg.openjdk.java.net/jdk7u/jdk7u-dev/jdk/rev/b453d9be6b3f (Patch)
www.exploit-db.com/exploits/24976 (VDB Entry, Third Party Advisory, exploit)
www.mandriva.com/security/advisories (vendor-advisory, Third Party Advisory)
lists.opensuse.org/opensuse-updates/2013-06/msg00099.html (vendor-advisory, Third Party Advisory)
rhn.redhat.com/errata/RHSA-2013-0752.html (vendor-advisory, Third Party Advisory)

Frequently asked questions

What is CVE-2013-2423?: CVE-2013-2423 is a low-severity vulnerability in Oracle Jre, classified under Improper Access Control. CVSS score: 3.7/10. Published 2013-04-17.
How severe is CVE-2013-2423?: Low severity. CVSS v3 base score is 3.7 out of 10.
Is CVE-2013-2423 known to be exploited?: Yes. CVE-2013-2423 is listed in the CISA Known Exploited Vulnerabilities catalog (added 2022-05-25), indicating it is being actively exploited. 5 public proof-of-concept repositories are indexed.