Cybercriminals actively scan for databases running old versions. Once a CVE (Common Vulnerabilities and Exposures) is disclosed for 11.2.0.4 after the Extended Support cutoff, there will be no official patch.
Oracle Database 11.2.0.4 was a titan of its era. It powered global banking, healthcare, and e-commerce for a decade. But technology has evolved. Security threats have evolved. Compliance regulations have tightened. oracle database 11.2 0.4 0 end of support