Oracle WebLogic Server Remote Code Execution Vulnerability
Oracle WebLogic Server, a product within the Fusion Middleware suite, contains a deserialization vulnerability. Unauthenticated attackers with network access via T3 or IIOP can exploit this vulnerability to achieve remote code execution.
- Vendor
- Oracle
- Product
- WebLogic Server
- CVSS
- 9.8
- EPSS (exploit probability)
- 94.5%
- Status
- kev
- CISA patch-by (BOD 22-01)
- Added to KEV
Is CVE-2020-14644 being exploited?
Yes. CISA added CVE-2020-14644 to its Known Exploited Vulnerabilities catalog on . CISA only lists a CVE when it has reliable evidence of exploitation in the wild.
FIRST's EPSS model puts the probability of exploitation activity in the next 30 days at 94.5% (scored October 14, 2026).
- CISA KEV[ LISTED ]
- ENISA EUVD (exploited)[ — ]
- CIRCL KEV[ — ]
Catalog snapshot 2026-10-21. Full cross-catalog view: /kev-comparison
What to do
CISA required actionApply mitigations per vendor instructions or discontinue use of the product if mitigations are unavailable.
US federal civilian agencies must remediate by (21 days after listing) under BOD 22-01. Everyone else: that deadline is a sensible upper bound, not a target. Vendor guidance and the NVD record are linked under Source above.
Other Oracle WebLogic Server CVEs we track
| CVE / Vulnerability | Severity | CVSS | EPSS | Added to KEV |
|---|---|---|---|---|
| CVE-2026-21962 Oracle WebLogic/HTTP Server unauthenticated data access via HTTPwrite-up | [ CRITICAL ] | 10.0 | 73.2% | |
| CVE-2024-21182 Oracle WebLogic Server Unspecified Vulnerability | [ HIGH ] | 7.5 | 74.2% | |
| CVE-2020-2883 Oracle WebLogic Server Unspecified Vulnerability | [ CRITICAL ] | 9.8 | 94.6% | |
| CVE-2017-3506 Oracle WebLogic Server OS Command Injection Vulnerability | [ HIGH ] | 7.4 | 96.0% | |
| CVE-2023-21839 Oracle WebLogic Server Unspecified Vulnerability | [ HIGH ] | 7.5 | 99.9% | |
| CVE-2018-2628 Oracle WebLogic Server Unspecified Vulnerability | [ CRITICAL ] | 9.8 | 100.0% | |
| CVE-2017-10271 Oracle Corporation WebLogic Server Remote Code Execution Vulnerabilityransomware use | [ HIGH ] | 7.5 | 100.0% | |
| CVE-2019-2725 Oracle WebLogic Server, Injectionransomware use | [ CRITICAL ] | 9.8 | 100.0% |