--- title: "CVE-2013-0422: Improper Access Control | CubePath" description: "Multiple vulnerabilities in Oracle Java 7 before Update 11 allow remote attackers to execute arbitrary code by (1) using the public getMBeanInstantiator…" language: en source: https://cubepath.com/security/cve/CVE-2013-0422 --- # CVE-2013-0422: Improper Access Control | CubePath ## Description 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. Official description from the CVE record, published by oracle. Copyright © 1999-2026 The MITRE Corporation. See [/security/cve/legal](https://cubepath.com/security/cve/legal) for the CVE license. [View the record on cve.org](https://www.cve.org/CVERecord?id=CVE-2013-0422) ## Key data ### CVSS 3.1 Critical 9.8 Score published by CISA-ADP in the CVE record. CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H | Metric | Value | What it means | | ---------------------- | --------- | ----------------------------------------------------------------------------------- | | Attack vector | Network | The vulnerable component can be reached over a network, possibly from the Internet. | | Attack complexity | Low | No special conditions are needed. The attack can be repeated at will. | | Privileges required | None | No account or privileges are needed. | | User interaction | None | No action from any user is needed. | | Scope | Unchanged | The impact stays within the vulnerable component. | | Confidentiality impact | High | Serious or total effect on the secrecy of data. | | Integrity impact | High | Serious or total effect on the trustworthiness of data. | | Availability impact | High | Serious or total effect on availability. | CVSS is owned and managed by FIRST.Org, Inc. (FIRST) and is used by permission. Each CVSS score on this site is shown together with its vector string, as published in the CVE record by the source named next to it. Learn more at [first.org/cvss](https://www.first.org/cvss/) . ### EPSS Exploit Prediction Scoring System by FIRST: an estimate of the probability that exploitation activity will be observed in the next 30 days. Score 0.97080 (97.1% probability) Percentile 99.9% Scores of Nov 10, 2026 Model v2026.06.15 ### CISA Known Exploited Vulnerabilities This CVE is listed in the CISA KEV catalog. Name in the catalog Oracle JRE Remote Code Execution Vulnerability Added to the catalog May 25, 2022 Federal due date Jun 15, 2022 Ransomware campaigns Known use ### CISA assessment as of Feb 10, 2025 Stakeholder-Specific Vulnerability Categorization (SSVC) decision points added by CISA. Exploitation Recorded by CISA as active Automatable yes Technical impact total ### Weakness (CWE) CWE catalog version 5.0. CWE names: Copyright © 2006-2026, The MITRE Corporation. See [/security/cve/legal](https://cubepath.com/security/cve/legal) for the CWE license. - [CWE-284](https://cwe.mitre.org/data/definitions/284.html) Improper Access Control ## References Links listed in the CVE record. They lead to other sites, which CubePath does not control. - [RHSA-2013:0156](http://rhn.redhat.com/errata/RHSA-2013-0156.html) (rhn.redhat.com) vendor-advisory - [malware.dontneedcoffee.com/2013/01/0-day-17u10-spotted-in-w…](http://malware.dontneedcoffee.com/2013/01/0-day-17u10-spotted-in-while-disable.html) - [MDVSA-2013:095](http://www.mandriva.com/security/advisories?name=MDVSA-2013:095) (mandriva.com) vendor-advisory - [blog.fuseyism.com/index.php/2013/01/15/security-icedtea-2-1…](http://blog.fuseyism.com/index.php/2013/01/15/security-icedtea-2-1-4-2-2-4-2-3-4-released/) - [openSUSE-SU-2013:0199](http://lists.opensuse.org/opensuse-security-announce/2013-01/msg00025.html) (lists.opensuse.org) vendor-advisory - [RHSA-2013:0165](http://rhn.redhat.com/errata/RHSA-2013-0165.html) (rhn.redhat.com) vendor-advisory - [VU#625617](http://www.kb.cert.org/vuls/id/625617) (kb.cert.org) third-party-advisory - [TA13-010A](http://www.us-cert.gov/cas/techalerts/TA13-010A.html) (us-cert.gov) third-party-advisory - [partners.immunityinc.com/idocs/Java%20MBeanInstantiator.fin…](https://partners.immunityinc.com/idocs/Java%20MBeanInstantiator.findClass%200day%20Analysis.pdf) - [blog.fireeye.com/research/2013/01/happy-new-year-from-new-j…](http://blog.fireeye.com/research/2013/01/happy-new-year-from-new-java-zero-day.html) - [www-304.ibm.com/connections/blogs/PSIRT/entry/oracle\_java\_7…](https://www-304.ibm.com/connections/blogs/PSIRT/entry/oracle%5Fjava%5F7%5Fsecurity%5Fmanager%5Fbypass%5Fvulnerability%5Fcve%5F2013%5F04224?lang=en%5Fus) - [USN-1693-1](http://www.ubuntu.com/usn/USN-1693-1) (ubuntu.com) vendor-advisory - [wiki.mageia.org/en/Support/Advisories/MGASA-2013-0018](https://wiki.mageia.org/en/Support/Advisories/MGASA-2013-0018) - [immunityproducts.blogspot.ca/2013/01/confirmed-java-only-fi…](http://immunityproducts.blogspot.ca/2013/01/confirmed-java-only-fixed-one-of-two.html) - [threatpost.com/en\_us/blogs/nasty-new-java-zero-day-found-ex…](https://threatpost.com/en%5Fus/blogs/nasty-new-java-zero-day-found-exploit-kits-already-have-it-011013) - [20130110 \[SE-2012-01\] 'Fix' for Issue 32 exploited by new Java 0-day code](http://seclists.org/bugtraq/2013/Jan/48) (seclists.org) mailing-list - [oracle.com/technetwork/topics/security/alert-cve-2013-0422-…](http://www.oracle.com/technetwork/topics/security/alert-cve-2013-0422-1896849.html) - [krebsonsecurity.com/2013/01/zero-day-java-exploit-debuts-in…](http://krebsonsecurity.com/2013/01/zero-day-java-exploit-debuts-in-crimeware/) - [labs.alienvault.com/labs/index.php/2013/new-year-new-java-z…](http://labs.alienvault.com/labs/index.php/2013/new-year-new-java-zeroday/) ## Timeline 1. ID reserved Dec 7, 2012 2. Record published Jan 10, 2013 3. Added to CISA KEV May 25, 2022 4. Record last updated Oct 22, 2025 ## Look up another CVE ## About CubePath CubePath is a cloud provider with data centers in Europe and the United States. It offers VPS, bare metal servers and DDoS protection. [Cloud VPS](https://cubepath.com/vps) [DDoS protection](https://cubepath.com/ddos-protection) Data from the CVE Program (MITRE), CISA KEV and FIRST EPSS. CVSS is owned by FIRST and used by permission. Not affiliated with or endorsed by MITRE, CISA or FIRST. Data as of Nov 10, 2026, 19:28 UTC. [Sources and licenses](https://cubepath.com/security/cve/legal)