Oracle Java Runtime Environment (JRE)

CVE-2013-2423: Oracle JRE Unspecified Vulnerability

Is it exploited?

Yes. CISA added it to the Known Exploited Vulnerabilities catalog on 25 May 2022, 3,325 days after the CVE record was published.

How likely is exploitation in the next 30 days?

85.2%

EPSS score, percentile 99.7 of all scored records

How severe?

3.7 Low

CVSS v3.1 base score, from CISA's enrichment of the record

What should I do?

Required action (CISA), due 15 Jun 2022: Apply updates per vendor instructions.

Advisories and patches (6)

Which versions are affected?

Not stated. The CVE record gives vendor and product as “n/a” and the version as “unspecified”.

Source: CISA Known Exploited Vulnerabilities (KEV) catalog, 2026.10.28, as of 28 Oct 2026; FIRST Exploit Prediction Scoring System (EPSS), v2026.06.15, as of 28 Oct 2026; CVE List V5 (CVE Program), cve_2026-10-28_0000Z, as of 28 Oct 2026. About the data.

What to do

Required action, set by CISA

Apply updates per vendor instructions.

CISA due date for this action: 15 June 2022.

Advisories and patches

GLSA-201406-32 (Vendor advisory)
RHSA-2013:0757 (Vendor advisory)
MDVSA-2013:161 (Vendor advisory)
openSUSE-SU-2013:0964 (Vendor advisory)
RHSA-2013:0752 (Vendor advisory)
USN-1806-1 (Vendor advisory)

Linked from CISA's catalog entry

https://nvd.nist.gov/vuln/detail/CVE-2013-2423

Affected products and versions

The CVE record does not name affected products or versions: vendor and product are “n/a” and the version is “unspecified”.

Source: CVE List V5 (CVE Program), cve_2026-10-28_0000Z, as of 28 Oct 2026. About the data.

About this vulnerability

Unspecified vulnerability in hotspot for Java Runtime Environment (JRE) allows remote attackers to affect integrity.

Summary: CISA's KEV catalog, as of 28 Oct 2026.

CISA added CVE-2013-2423 to its Known Exploited Vulnerabilities (KEV) catalog on 25 May 2022.
CISA's ransomware flag for this entry is "Unknown": no evidence of ransomware use in the catalog, which is not proof of none.
The due date CISA sets for the required action is 15 Jun 2022.
The CVE record was published on 17 Apr 2013, 3,325 days before it was added to KEV.
The CVE record carries a CVSS v3.1 base score of 3.7 (Low), taken from CISA's enrichment of the record.
FIRST's EPSS model puts the probability of exploitation in the next 30 days at 85.2% (percentile 99.7), as of 28 Oct 2026.
CISA's SSVC assessment in the CVE record: exploitation active, automatable no, technical impact partial.

Source: CISA Known Exploited Vulnerabilities (KEV) catalog, 2026.10.28, as of 28 Oct 2026; CVE List V5 (CVE Program), cve_2026-10-28_0000Z, as of 28 Oct 2026; FIRST Exploit Prediction Scoring System (EPSS), v2026.06.15, as of 28 Oct 2026. About the data.

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.

Source: CVE List V5 (CVE Program), cve_2026-10-28_0000Z, as of 28 Oct 2026. About the data.

Weakness

CWE-284: Improper Access Control

CWE and CAPEC are maintained by MITRE; the entries are those named in the CVE record and the KEV entry.

Timeline

Date	Event
17 Apr 2013	CVE record published
25 May 2022	Added to CISA KEV
15 Jun 2022	CISA due date for the required action
22 Oct 2025	CVE record last updated

References

TA13-107A (Third-party advisory)
24976 (Exploit)
oval:org.mitre.oval:def:16700 (Vulnerability database)
weblog.ikvm.net
wiki.mageia.org
hg.openjdk.java.net

4 more in the CVE record.

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