CVE-2023-21839
CISA KEVPublished May 1, 2023 · Updated April 3, 2026
high
Official Description+
Oracle WebLogic Server contains an unspecified vulnerability that allows an unauthenticated attacker with network access via T3, IIOP, to compromise Oracle WebLogic Server.
Affected Products
| Vendor | Product |
|---|---|
| Oracle | WebLogic Server |
Patch Status
Patch by 2023-05-22
Recommended Actions
- Check if your systems use any of the affected products listed above.
- Apply vendor patches immediately if available.
- This vulnerability is in CISA's Known Exploited Vulnerabilities catalog — prioritize remediation.
- Monitor vendor advisories for updates and additional mitigations.
- Review logs for indicators of compromise related to CVE-2023-21839.