CVE-2015-4852: Oracle WebLogic Server Deserialization of Untrusted Data Vulnerability

Reference page built from the source records below, each shown as its source publishes it. Dataset version ref-efc3ebb453f8, updated 2026-11-02T23:39:54.475Z.

CISA Known Exploited Vulnerabilities

Name: Oracle WebLogic Server Deserialization of Untrusted Data Vulnerability
Vendor: Oracle
Product: WebLogic Server
Added to the catalog: 2021-11-03
Due date for US federal agencies: 2022-05-03
Weaknesses: CWE-502
Catalog version: 2026.10.30

Oracle WebLogic Server contains a deserialization of untrusted data vulnerability within Apache Commons, which can allow for for remote code execution.

Required action (CISA)

Apply updates per vendor instructions.

Ransomware use: CISA does not mark known use of this vulnerability in ransomware campaigns.

Links in CISA's notes

https://nvd.nist.gov/vuln/detail/CVE-2015-4852

Read on 2026-11-02T23:39:54.475Z under licence cisa-kev-cc0@b0067899 from https://www.cisa.gov/sites/default/files/feeds/known_exploited_vulnerabilities.json

NVD analysis

Status: Analyzed
Published: 2015-11-18T15:59:00.133
Last modified: 2026-06-17T00:28:02.700
Weaknesses: CWE-502

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.

Metric	Score	Severity	Vector	Scored by
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	[email protected] (Primary)
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	134c704f-9b21-4f2e-91b3-4a467353bcc0 (Secondary)
CVSS 2.0	7.5	HIGH	AV:N/AC:L/Au:N/C:P/I:P/A:P	[email protected] (Primary)

References

http://foxglovesecurity.com/2015/11/06/what-do-weblogic-websphere-jboss-jenkins-opennms-and-your-application-have-in-common-this-vulnerability/ (Exploit)
http://packetstormsecurity.com/files/152268/Oracle-Weblogic-Server-Deserialization-Remote-Code-Execution.html (Exploit, Third Party Advisory, VDB Entry)
http://www.openwall.com/lists/oss-security/2015/11/17/19 (Mailing List, Third Party Advisory)
http://www.oracle.com/technetwork/security-advisory/cpuapr2017-3236618.html (Patch)
http://www.oracle.com/technetwork/security-advisory/cpujan2018-3236628.html (Patch, Vendor Advisory)
http://www.oracle.com/technetwork/security-advisory/cpuoct2016-2881722.html (Patch, Vendor Advisory)
http://www.oracle.com/technetwork/security-advisory/cpuoct2017-3236626.html (Patch, Vendor Advisory)
http://www.oracle.com/technetwork/topics/security/alert-cve-2015-4852-2763333.html (Vendor Advisory)
http://www.oracle.com/technetwork/topics/security/cpujan2016-2367955.html (Patch, Vendor Advisory)
http://www.securityfocus.com/bid/77539 (Broken Link)
http://www.securitytracker.com/id/1038292 (Broken Link)
https://blogs.oracle.com/security/entry/security_alert_cve_2015_4852 (Broken Link)
https://github.com/foxglovesec/JavaUnserializeExploits/blob/master/weblogic.py (Product)
https://www.exploit-db.com/exploits/42806/ (Exploit, Third Party Advisory, VDB Entry)
https://www.exploit-db.com/exploits/46628/ (Exploit, Third Party Advisory, VDB Entry)
http://foxglovesecurity.com/2015/11/06/what-do-weblogic-websphere-jboss-jenkins-opennms-and-your-application-have-in-common-this-vulnerability/ (Exploit)
http://packetstormsecurity.com/files/152268/Oracle-Weblogic-Server-Deserialization-Remote-Code-Execution.html (Exploit, Third Party Advisory, VDB Entry)
http://www.openwall.com/lists/oss-security/2015/11/17/19 (Mailing List, Third Party Advisory)
http://www.oracle.com/technetwork/security-advisory/cpuapr2017-3236618.html (Patch)
http://www.oracle.com/technetwork/security-advisory/cpujan2018-3236628.html (Patch, Vendor Advisory)
http://www.oracle.com/technetwork/security-advisory/cpuoct2016-2881722.html (Patch, Vendor Advisory)
http://www.oracle.com/technetwork/security-advisory/cpuoct2017-3236626.html (Patch, Vendor Advisory)
http://www.oracle.com/technetwork/topics/security/alert-cve-2015-4852-2763333.html (Vendor Advisory)
http://www.oracle.com/technetwork/topics/security/cpujan2016-2367955.html (Patch, Vendor Advisory)
http://www.securityfocus.com/bid/77539 (Broken Link)
http://www.securitytracker.com/id/1038292 (Broken Link)
https://blogs.oracle.com/security/entry/security_alert_cve_2015_4852 (Broken Link)
https://github.com/foxglovesec/JavaUnserializeExploits/blob/master/weblogic.py (Product)
https://www.exploit-db.com/exploits/42806/ (Exploit, Third Party Advisory, VDB Entry)
https://www.exploit-db.com/exploits/46628/ (Exploit, Third Party Advisory, VDB Entry)
https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2015-4852 (US Government Resource)

This product uses the NVD API but is not endorsed or certified by the NVD.

Read on 2026-11-02T23:41:28.906Z under licence nvd-api-terms-of-use@ff2a5288 from https://services.nvd.nist.gov/rest/json/cves/2.0?cveId=CVE-2015-4852

CVE record

Assigner: oracle
State: PUBLISHED
Published: 2015-11-18T15:00:00.000Z
Updated: 2025-10-21T23:55:57.062Z
Problem types: n/a

References

http://www.oracle.com/technetwork/security-advisory/cpujan2018-3236628.html
http://www.oracle.com/technetwork/security-advisory/cpuapr2017-3236618.html
http://www.oracle.com/technetwork/topics/security/cpujan2016-2367955.html
http://www.oracle.com/technetwork/security-advisory/cpuoct2016-2881722.html
https://github.com/foxglovesec/JavaUnserializeExploits/blob/master/weblogic.py
http://www.oracle.com/technetwork/security-advisory/cpuoct2017-3236626.html
https://blogs.oracle.com/security/entry/security_alert_cve_2015_4852
1038292
77539
http://www.oracle.com/technetwork/topics/security/alert-cve-2015-4852-2763333.html
[oss-security] 20151117 Re: Assign CVE for common-collections remote code execution on deserialisation flaw
42806
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
46628

Read on 2026-11-03T00:32:57.022Z under licence cve-terms-of-use@81bfa2f3 from https://raw.githubusercontent.com/CVEProject/cvelistV5/main/cves/2015/4xxx/CVE-2015-4852.json

Defensive techniques (MITRE D3FEND)

D3FEND maps these defensive techniques to the weakness (CWE) that NVD lists for this CVE, through the digital artifacts the weakness affects. D3FEND does not say they stop this vulnerability.

CWE-502: Deserialization of Untrusted Data

Harden: Software Update (acts on Software)
Harden: Trusted Library (acts on Subroutine)
Model: Software Inventory (acts on Software)
Model: Asset Vulnerability Enumeration (acts on Software)
Harden: Domain Logic Validation (acts on Subroutine)
Harden: Variable Initialization (acts on Subroutine)
Harden: Credential Scrubbing (acts on Subroutine)
Restore: Restore Software (acts on Software)
Isolate: Application-based Process Isolation (acts on Subroutine)

D3FEND ontology version 1.6.0.

Read on 2026-11-02T23:56:57.230Z under licence d3fend-terms-of-use@f98cbc7e from https://d3fend.mitre.org/api/weakness/cwe/CWE-502.json

MITRE D3FEND™ knowledge graph. © 2025 The MITRE Corporation.
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Sources and licences

CISA
Source: CISA Catalog of Known Exploited Vulnerabilities, version 2026.10.30, CC0 1.0. Use of this data does not imply endorsement by CISA or DHS.
CC0 1.0 Universal
National Vulnerability Database (NIST)
This product uses the NVD API but is not endorsed or certified by the NVD.
NVD API Terms of Use (NIST publications in the public domain, 17 U.S.C. 105)
CVE Program, The MITRE Corporation
Copyright © 1999-2026, The MITRE Corporation. CVE is a trademark and the CVE logo is a registered trademark of The MITRE Corporation. CVE Usage: MITRE hereby grants you a perpetual, worldwide, non-exclusive, no-charge, royalty-free, irrevocable copyright license to reproduce, prepare derivative works of, publicly display, publicly perform, sublicense, and distribute Common Vulnerabilities and Exposures (CVE™). Any copy you make for such purposes is authorized provided that you reproduce MITRE's copyright designation and this license in any such copy.
CVE Program Terms of Use ("CVE Usage" licence)
MITRE D3FEND
MITRE D3FEND™ knowledge graph. © 2025 The MITRE Corporation.
"The MITRE Corporation (MITRE) hereby grants you a non-exclusive, royalty-free license to use D3FEND for research, development, and commercial purposes. Any copy you make for such purposes is authorized provided that you reproduce MITRE's copyright designation and this license in any such copy." Terms: https://d3fend.mitre.org/tou/
MITRE D3FEND Terms of Use (site + knowledge graph); source repo MIT

Cite this page

Dragons Eye Ransomware Tracker, "CVE-2015-4852: Oracle WebLogic Server Deserialization of Untrusted Data Vulnerability",
entity page, dataset version ref-efc3ebb453f8, updated 2026-11-02T23:39:54.475Z,
https://ransomware-tracker.com/cve/CVE-2015-4852 (accessed 2026-11-03).
Underlying source: CISA Catalog of Known Exploited Vulnerabilities, version 2026.10.30.
Underlying source: National Vulnerability Database (NIST), CVE API 2.0, record last modified 2026-06-17T00:28:02.700.
Underlying source: CVE List (CVE Program, The MITRE Corporation), record updated 2025-10-21T23:55:57.062Z.
Underlying source: MITRE D3FEND, ontology version 1.6.0.

Pages change. The dataset version identifies the data, but no archive of old versions is kept, so this citation cannot be replayed later.

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