CVE-2023-21839

CISA description

Oracle WebLogic Server contains an unspecified vulnerability that allows an unauthenticated attacker with network access via T3, IIOP, to compromise Oracle WebLogic Server.

Required action

Apply updates per vendor instructions.

Notes & references

• https://www.oracle.com/security-alerts/cpujan2023.html
• https://nvd.nist.gov/vuln/detail/CVE-2023-21839

Where this lands in 800-53

Vulnerability data triggers these controls during assessment and continuous monitoring.

• RA-5 · Vulnerability Monitoring and Scanning
• SI-2 · Flaw Remediation
• CM-6 · Configuration Settings
• SI-7 · Software, Firmware, and Information Integrity
• CM-8 · System Component Inventory

External lookups

• NVD · CVE-2023-21839
• CVE.org · CVE-2023-21839
• CISA KEV catalog (canonical)