CISA KEV catalog
Confirmed active exploitation.
Listed in CISA's catalog of Known Exploited Vulnerabilities: attackers are using it in real attacks. Patch it with priority.
- Name
- Oracle WebLogic Server Deserialization of Untrusted Data Vulnerability
- Added to catalog
- Remediation due date (US federal)
- Required action
- Apply updates per vendor instructions.
Description
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.
Affected products
oracle: virtual desktop infrastructure; oracle: storagetek tape analytics sw tool; oracle: weblogic server
References10
- www.oracle.com/technetwork/security-advisory/cpujan2018-3236628… PatchVendor Advisory
- www.oracle.com/technetwork/security-advisory/cpuoct2016-2881722… PatchVendor Advisory
- www.oracle.com/technetwork/security-advisory/cpuoct2017-3236626… PatchVendor Advisory
- www.oracle.com/technetwork/topics/security/alert-cve-2015-4852-… Vendor Advisory
- www.oracle.com/technetwork/topics/security/cpujan2016-2367955.h… PatchVendor Advisory
- www.oracle.com/technetwork/security-advisory/cpujan2018-3236628… PatchVendor Advisory
- www.oracle.com/technetwork/security-advisory/cpuoct2016-2881722… PatchVendor Advisory
- www.oracle.com/technetwork/security-advisory/cpuoct2017-3236626… PatchVendor Advisory
- www.oracle.com/technetwork/topics/security/alert-cve-2015-4852-… Vendor Advisory
- www.oracle.com/technetwork/topics/security/cpujan2016-2367955.h… PatchVendor Advisory
Metrics
- CVSS 3.1
-
9.8
CRITICAL
Score source: NVD
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H - EPSS — exploit probability
- 95% percentile: 100 · as of 2 November 2026
- CWE
- CWE-502