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…
- 9.8CriticalCVSS base score
- 95.0%Exploitation in 30 daysEPSS · top 0.1% of all CVEs
- YesKnown exploitedin CISA's KEV since 3 Nov 2021
- 4Public exploitsMetasploit, Nuclei and Exploit-DB
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.
Exploited in the wild
CISA lists this vulnerability in its Known Exploited Vulnerabilities catalog as Oracle WebLogic Server Deserialization of Untrusted Data Vulnerability.
- Added
- 3 Nov 2021
- Fix due (US federal)
- 3 May 2022
- Used by ransomware
- Not known
Apply updates per vendor instructions.
ENISA's EU Vulnerability Database lists it as exploited, from CISA's KEV, since 3 Nov 2021.
Public exploit
An exploit or proof of concept is public: anyone can try it against an unpatched system. The public collections list a Metasploit module and 3 Exploit-DB entries for it. 2 references of the record are tagged as an exploit. CISA's SSVC rates its exploitation: it is being exploited.
Show the exploits6
Metasploit modules1 module
- Oracle Weblogic Server Deserialization RCE - Raw Object (Metasploit module) (opens in a new tab)
exploit/multi/misc/weblogic_deserialize_rawobjectRank excellentdisclosed 28 Jan 2015
Exploit-DB3 entries
- Oracle Weblogic Server Deserialization RCE - Raw Object (Metasploit) (Exploit-DB entry) (opens in a new tab)
EDB-ID 46628remote, multiplepublished 28 Mar 2019Verified
- Oracle WebLogic Server 10.3.6.0 - Java Deserialization Remote Code Execution (Exploit-DB entry) (opens in a new tab)
EDB-ID 42806remote, javapublished 27 Sept 2017Not verified
- Websphere/JBoss/OpenNMS/Symantec Endpoint Protection Manager - Java Deserialization Remote Code Execution (Exploit-DB entry) (opens in a new tab)
EDB-ID 44552remote, multiplepublished 20 Jul 2016Not verified
References tagged exploit2 references
- 42806 (opens in a new tab)exploitx_refsource_EXPLOIT-DBx_transferred
- 46628 (opens in a new tab)exploitx_refsource_EXPLOIT-DBx_transferred
Modules, templates and exploits as listed by the Metasploit Framework (BSD-3-Clause), ProjectDiscovery's Nuclei templates (MIT) and the Exploit Database (GPLv2), read once a day. Where the data comes from
Timeline
ID reserved
By oracle
- 5 months later
· 5 months later
Published
- 6 years later
· 6 years later
Added to CISA KEV
Known exploited in the wild
- 4 years later
· 4 years later
Record updated
Changes after publication (a new score, a public exploit, EPSS crossing 1, 10 or 50 %, leaving KEV) are kept since November 2026; earlier ones are not known.
Scores
| Scored by | CVSS | Score | Vector |
|---|---|---|---|
| CISA-ADPADP (enrichment) | 3.1 | Critical9.8 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H |
| NVDNVD · Analyzed | 3.1 | Critical9.8 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H |
- EPSS (exploitation in 30 days)
- 95.0% · top 0.1% of all CVEs (9 Nov 2026)
- CISA SSVC
- Exploitation: active · Automatable: yes · Technical impact: total
The list uses the assigner's score when there is one, then CISA's, then NVD's: Critical 9.8.
Affected products
n/a
- affected n/a
References
16
- http://www.oracle.com/technetwork/security-advisory/cpujan2018-3236628.html (opens in a new tab)x_refsource_CONFIRMx_transferred
- http://www.oracle.com/technetwork/security-advisory/cpuapr2017-3236618.html (opens in a new tab)x_refsource_CONFIRMx_transferred
- http://www.oracle.com/technetwork/topics/security/cpujan2016-2367955.html (opens in a new tab)x_refsource_CONFIRMx_transferred
- http://www.oracle.com/technetwork/security-advisory/cpuoct2016-2881722.html (opens in a new tab)x_refsource_CONFIRMx_transferred
- https://github.com/foxglovesec/JavaUnserializeExploits/blob/master/weblogic.py (opens in a new tab)x_refsource_MISCx_transferred
- http://www.oracle.com/technetwork/security-advisory/cpuoct2017-3236626.html (opens in a new tab)x_refsource_CONFIRMx_transferred
- https://blogs.oracle.com/security/entry/security_alert_cve_2015_4852 (opens in a new tab)x_refsource_CONFIRMx_transferred
- 1038292 (opens in a new tab)vdb-entryx_refsource_SECTRACKx_transferred
- 77539 (opens in a new tab)vdb-entryx_refsource_BIDx_transferred
- http://www.oracle.com/technetwork/topics/security/alert-cve-2015-4852-2763333.html (opens in a new tab)x_refsource_CONFIRMx_transferred
- [oss-security] 20151117 Re: Assign CVE for common-collections remote code execution on deserialisation flaw (opens in a new tab)mailing-listx_refsource_MLISTx_transferred
- 42806 (opens in a new tab)exploitx_refsource_EXPLOIT-DBx_transferred
- http://foxglovesecurity.com/2015/11/06/what-do-weblogic-websphere-jboss-jenkins-opennms-and-your-application-have-in-common-this-vulnerability/ (opens in a new tab)x_refsource_MISCx_transferred
- http://packetstormsecurity.com/files/152268/Oracle-Weblogic-Server-Deserialization-Remote-Code-Execution.html (opens in a new tab)x_refsource_MISCx_transferred
- 46628 (opens in a new tab)exploitx_refsource_EXPLOIT-DBx_transferred
- https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2015-4852 (opens in a new tab)government-resource
Sources
The same CVE in the primary databases and aggregators, to check against.
- CVE.org record (opens in a new tab)
- CVE List JSON (GitHub) (opens in a new tab)
- NVD (opens in a new tab)
- CISA KEV catalog (opens in a new tab)
- FIRST EPSS (opens in a new tab)
- EUVD EUVD-2015-4869 (opens in a new tab)
- OSV.dev (opens in a new tab)
- GitHub Advisories (opens in a new tab)
- CIRCL Vulnerability-Lookup (opens in a new tab)
Badge for a README or a ticket
[](https://cveledger.app/cve/CVE-2015-4852)Record last updated .