CVE-2015-4852
CVE-2015-4852 is a critical-severity vulnerability in Oracle Virtual Desktop Infrastructure with a CVSS 3.x base score of 9.8. It is listed in CISA's Known Exploited Vulnerabilities (KEV) catalog, confirming it has been exploited in the wild (added 2021-11-03). The underlying weakness is classified as CWE-502.
Key facts
- Severity: Critical (CVSS 3.x base score 9.8)
- CVSS v2: 7.5
- EPSS exploit prediction: 96% (100th percentile)
- Actively exploited: Yes — listed in CISA KEV (added 2021-11-03)
- EU (EUVD) id: EUVD-2015-4869
- EU exploitation: Flagged exploited in the ENISA EU Vulnerability Database (since 2021-11-03)
- Weakness: CWE-502
- Affected product: Oracle Virtual Desktop Infrastructure
- Published:
- Last modified:
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.
Frequently asked questions
- What is CVE-2015-4852?
- 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.
- How severe is CVE-2015-4852?
- CVE-2015-4852 has a CVSS 3.x base score of 9.8, rated critical severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
- Is CVE-2015-4852 being actively exploited?
- Yes. CVE-2015-4852 is on CISA's Known Exploited Vulnerabilities (KEV) catalog, added on 2021-11-03, which means active exploitation has been confirmed. It should be prioritised for remediation.
- What products are affected by CVE-2015-4852?
- CVE-2015-4852 primarily affects Oracle Virtual Desktop Infrastructure. In total, 6 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
- How do I fix CVE-2015-4852?
- Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Because this CVE is known to be actively exploited, treat remediation as urgent — CISA KEV typically sets a short remediation deadline.
- Does CVE-2015-4852 have an EU (EUVD) identifier?
- Yes. CVE-2015-4852 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2015-4869. It is also flagged as exploited in the EUVD (since 2021-11-03).
- When was CVE-2015-4852 published?
- CVE-2015-4852 was published on 2015-11-18 and last updated on 2026-06-17.
References
- http://foxglovesecurity.com/2015/11/06/what-do-weblogic-websphere-jboss-jenkins-opennms-and-your-application-have-in-common-this-vulnerability/
- http://packetstormsecurity.com/files/152268/Oracle-Weblogic-Server-Deserialization-Remote-Code-Execution.html
- http://www.openwall.com/lists/oss-security/2015/11/17/19
- http://www.oracle.com/technetwork/security-advisory/cpuapr2017-3236618.html
- http://www.oracle.com/technetwork/security-advisory/cpujan2018-3236628.html
- http://www.oracle.com/technetwork/security-advisory/cpuoct2016-2881722.html
- http://www.oracle.com/technetwork/security-advisory/cpuoct2017-3236626.html
- http://www.oracle.com/technetwork/topics/security/alert-cve-2015-4852-2763333.html
- http://www.oracle.com/technetwork/topics/security/cpujan2016-2367955.html
- http://www.securityfocus.com/bid/77539
- http://www.securitytracker.com/id/1038292
- https://blogs.oracle.com/security/entry/security_alert_cve_2015_4852
- https://github.com/foxglovesec/JavaUnserializeExploits/blob/master/weblogic.py
- https://www.exploit-db.com/exploits/42806/
- https://www.exploit-db.com/exploits/46628/
- https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2015-4852
Affected products (6)
- cpe:2.3:a:oracle:virtual_desktop_infrastructure:*:*:*:*:*:*:*:*
- cpe:2.3:a:oracle:storagetek_tape_analytics_sw_tool:2.3:*:*:*:*:*:*:*
- cpe:2.3:a:oracle:weblogic_server:10.3.6.0.0:*:*:*:*:*:*:*
- cpe:2.3:a:oracle:weblogic_server:12.1.2.0.0:*:*:*:*:*:*:*
- cpe:2.3:a:oracle:weblogic_server:12.1.3.0.0:*:*:*:*:*:*:*
- cpe:2.3:a:oracle:weblogic_server:12.2.1.0.0:*:*:*:*:*:*:*
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