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CVE-2012-5076 Oracle CVE debrief

CVE-2012-5076 is an Oracle Java SE sandbox bypass vulnerability that CISA has included in its Known Exploited Vulnerabilities catalog. For defenders, the main takeaway is operational: treat affected Java SE installations as high priority for patching and follow Oracle’s update guidance. CISA’s KEV entry indicates known exploitation, and the catalog directs organizations to apply updates per vendor instructions.

Vendor
Oracle
Product
Java SE
CVSS
Unknown
CISA KEV
Listed
Original CVE published
2022-03-28
Original CVE updated
2022-03-28
Advisory published
2022-03-28
Advisory updated
2022-03-28

Who should care

Security and IT teams responsible for Oracle Java SE deployments, endpoint management, vulnerability remediation, and risk-based patching should prioritize this issue. It is especially relevant for organizations that still run legacy Java components or have broad Java SE exposure across user workstations and servers.

Technical summary

The available source corpus identifies the issue as a Java SE sandbox bypass vulnerability. CISA’s KEV catalog records it as a known exploited vulnerability and points to the NVD record for additional vulnerability detail. No further technical mechanism is provided in the supplied sources, so the safe defensive summary is that the flaw involves bypassing Java SE sandbox protections and should be addressed by applying Oracle-provided updates.

Defensive priority

High. CISA has listed this CVE in the Known Exploited Vulnerabilities catalog, which is a strong signal to prioritize remediation over routine backlog scheduling.

Recommended defensive actions

  • Apply Oracle updates per vendor instructions for affected Java SE installations.
  • Use the CISA KEV due date (2022-04-18) as a remediation target for any still-unpatched exposed systems.
  • Inventory endpoints, servers, and applications that depend on Java SE to identify remaining exposure.
  • Validate that patching covers both user-facing workstations and less visible servers or embedded Java deployments.
  • Track remediation status and confirm that the vulnerable Java SE versions are no longer present in asset scans.

Evidence notes

CISA’s KEV metadata for this item names the vendor as Oracle, the product as Java SE, the vulnerability as a sandbox bypass issue, and the required action as: “Apply updates per vendor instructions.” The KEV entry also records dateAdded 2022-03-28 and dueDate 2022-04-18. The supplied notes field points to the NVD CVE detail page for CVE-2012-5076. No CVSS score or severity was supplied in the corpus.

Official resources

CISA added this CVE to the Known Exploited Vulnerabilities catalog on 2022-03-28 and set a remediation due date of 2022-04-18. The supplied corpus does not establish the original vulnerability disclosure date.