Critical (9.8) in Oracle WebLogic Server. In CISA KEV since 2021-11-03. EPSS 95% chance of exploitation in the next 30 days.
The WLS Security component in Oracle WebLogic Server 10.3.6.0, 12.1.2.0, 12.1.3.0, and 12.2.1.0 allows remote attackers to execute arbitrary commands via a crafted serialized Java object in T3 protocol traffic to TCP port 7001, related to oracle_common/modules/com.bea.core.apache.commons.collections.jar. NOTE: the scope of this CVE is limited to the WebLogic Server product.
Severity
CVSS 3.1
9.8 critical
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
EPSS
95% chance of exploitation in the next 30 days; higher than 99% of CVEs (scores of 2026-10-31)