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CVE-2013-0422

9.8
CRITICALCVSS v3.1 Base Score
93.61%
HIGH RiskEPSS (100th percentile)
KEV
NVD-CWE-Other

Multiple vulnerabilities in Oracle Java 7 before Update 11 allow remote attackers to execute arbitrary code by (1) using the public getMBeanInstantiator method in the JmxMBeanServer class to obtain a reference to a private MBeanInstantiator object, then retrieving arbitrary Class references using the findClass method, and (2) using the Reflection API with recursion in a way that bypasses a security check by the java.lang.invoke.MethodHandles.Lookup.checkSecurityManager method due to the inability of the sun.reflect.Reflection.getCallerClass method to skip frames related to the new reflection API, as exploited in the wild in January 2013, as demonstrated by Blackhole and Nuclear Pack, and a different vulnerability than CVE-2012-4681 and CVE-2012-3174. NOTE: some parties have mapped the recursive Reflection API issue to CVE-2012-3174, but CVE-2012-3174 is for a different vulnerability whose details are not public as of 20130114. CVE-2013-0422 covers both the JMX/MBean and Reflection API issues. NOTE: it was originally reported that Java 6 was also vulnerable, but the reporter has retracted this claim, stating that Java 6 is not exploitable because the relevant code is called in a way that does not bypass security checks. NOTE: as of 20130114, a reliable third party has claimed that the findClass/MBeanInstantiator vector was not fixed in Oracle Java 7 Update 11. If there is still a vulnerable condition, then a separate CVE identifier might be created for the unfixed issue.

Published: 1/10/2013
Modified: 4/21/2026
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ACTIVELY EXPLOITED IN THE WILD

This vulnerability is listed in the CISA Known Exploited Vulnerabilities (KEV) catalog.

Vulnerability Name:

Oracle JRE Remote Code Execution Vulnerability

Vendor / Product:

Oracle Java Runtime Environment (JRE)

Required Action:

Apply updates per vendor instructions.

Due Date: 6/15/2022(OVERDUE)
Ransomware Campaign Use
Added to KEV:

5/25/2022

Notes:

https://nvd.nist.gov/vuln/detail/CVE-2013-0422

Vulnerability Summary

CVSS v3 Score

9.8CRITICAL

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

CVSS v2 Score

10

AV:N/AC:L/Au:N/C:C/I:C/A:C

EPSS Score (Exploitation Probability)

93.61%HIGH Exploitation Risk
100th percentile

This vulnerability has a 93.61% probability of being exploited in the next 30 days, ranking higher than 100% of all scored CVEs.

CWE Classification

NVD-CWE-Other

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