CVE-2012-5076
Actively exploited. CVE-2012-5076 is listed in the CISA Known Exploited Vulnerabilities catalog (added 2022-03-28) — exploitation has been observed in the wild, and US federal agencies are required to remediate it under BOD 22-01. Treat patching as urgent.
Public exploit code is available. Proof-of-concept or working exploit code for CVE-2012-5076 is indexed in Metasploit and Exploit-DB. Expect opportunistic scanning and exploitation attempts — prioritize remediation.
The default Java security properties configuration did not restrict access to the com.sun.org.glassfish.external and com.sun.org.glassfish.gmbal packages. An untrusted Java application or applet could use these flaws to bypass Java sandbox restrictions.
CSIRTS triage
- What
- The default Java security properties configuration did not restrict access to certain packages, allowing sandbox bypass.
- Who is affected
- Untrusted Java applications or applets running in environments with default security settings.
- Urgency
- Immediate action is required as the vulnerability is actively exploited and rated critical.
- Action
- Update Java SE to the latest version to mitigate this vulnerability.
AI-assisted analysis generated from the source advisory — verify against the original.
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Exploitation outlook
- Exploitation confirmedAlready exploited in the wild (CISA KEV) — the prediction phase is over. Patch now. Riskier than 100% of all EPSS-scored CVEs.
Exploit availability
Public exploit or proof-of-concept code for CVE-2012-5076 is indexed in these free datasets. Available exploit code raises real-world risk independent of the CVSS score.
- MetasploitA Metasploit Framework module targets this CVE — weaponized, point-and-click exploitation.look it up ↗
- Exploit-DBA public exploit is published in the Exploit-DB archive.look it up ↗
Advisory coverage (1)
- criticalexploitedCVE-2012-5076: Oracle Java SE Sandbox Bypass Vulnerabilitycisa-kev · 2022-03-28
External references
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