# CVE-2012-5076: Oracle Java SE Sandbox Bypass Vulnerability

Source: https://junglewise.ai/threats/cve-2012-5076-oracle-java-se-sandbox-bypass-vulnerability  
Publisher: Junglewise Threat Intelligence, https://junglewise.ai/threats  
Published: 2022-03-28. Updated: 2026-05-10  
License: CC BY 4.0 with a link back

CVE-2012-5076 · Severity: critical · CVSS 9.8 · Exploited in the wild · Published 2022-03-28

The default Java security properties configuration failed to restrict access to the com.sun.org.glassfish.external and com.sun.org.glassfish.gmbal packages. This allows untrusted Java applications or applets to bypass sandbox restrictions and affect confidentiality, integrity, and availability via JAX-WS.

Technologies: [Oracle Java SE](https://junglewise.ai/threats/technologies/java-se), [Oracle JRockit](https://junglewise.ai/threats/technologies/jrockit). Vendors: [Oracle](https://junglewise.ai/threats/vendors/oracle).

## Quick answers

**Is CVE-2012-5076 exploited in the wild?** Yes. CVE-2012-5076 is known to be exploited in the wild, first recorded on 28 March 2022. Treat it as urgent.

**How severe is CVE-2012-5076?** Critical severity, with a CVSS score of 9.8, published 28 March 2022.

**Which products and versions are affected?** Oracle Java SE 7 Update 7 and earlier; Oracle JRE 7 Update 7 and earlier; Oracle JDK 7 Update 7 and earlier.

**Is there a fix for CVE-2012-5076?** A patch was published on 2012-10-16: Oracle Critical Patch Update October 2012 Junglewise finds every place you run it, drafts the upgrade and applies it once you approve.

**How is CVE-2012-5076 attacked?** It is attacked over the network, in a software library.

**Am I affected by CVE-2012-5076?** Check whether you run Oracle Java SE or Oracle JRockit. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

## Affected products

- Oracle Java SE 7 Update 7 and earlier
- Oracle JRE 7 Update 7 and earlier
- Oracle JDK 7 Update 7 and earlier

## Timeline

- 2012-10-16: patched: Oracle Critical Patch Update October 2012
- 2022-03-28: kev added: Added to CISA Known Exploited Vulnerabilities Catalog
- 2022-03-28: disclosed: NVD publication date

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