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CVE Record
[ CRITICAL ]CVE-2020-2883

Oracle WebLogic Server Unspecified Vulnerability

Oracle WebLogic Server, a product within the Fusion Middleware suite, contains an unspecified vulnerability exploitable by an unauthenticated attacker with network access via IIOP or T3.

Vendor
Oracle
Product
WebLogic Server
CVSS
9.8
EPSS (exploit probability)
94.6%
Status
kev
CISA patch-by (BOD 22-01)
Added to KEV

Is CVE-2020-2883 being exploited?

Yes. CISA added CVE-2020-2883 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 94.6% (scored October 15, 2026).

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.

CVE / VulnerabilitySeverityCVSSEPSSAdded to KEV
CVE-2026-21962
Oracle WebLogic/HTTP Server unauthenticated data access via HTTPwrite-up
[ CRITICAL ]10.073.2%
CVE-2024-21182
Oracle WebLogic Server Unspecified Vulnerability
[ HIGH ]7.574.2%
CVE-2020-14644
Oracle WebLogic Server Remote Code Execution Vulnerability
[ CRITICAL ]9.894.5%
CVE-2017-3506
Oracle WebLogic Server OS Command Injection Vulnerability
[ HIGH ]7.496.0%
CVE-2023-21839
Oracle WebLogic Server Unspecified Vulnerability
[ HIGH ]7.599.9%
CVE-2018-2628
Oracle WebLogic Server Unspecified Vulnerability
[ CRITICAL ]9.8100.0%
CVE-2017-10271
Oracle Corporation WebLogic Server Remote Code Execution Vulnerabilityransomware use
[ HIGH ]7.5100.0%
CVE-2019-2725
Oracle WebLogic Server, Injectionransomware use
[ CRITICAL ]9.8100.0%
All 13 Oracle WebLogic Server known exploited vulnerabilities →