CVE-2015-4852
Confirmed PUBLISHEDThe 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...
Recommended Action
Prioritize remediation. Validate affected assets and apply vendor fixes on an accelerated timeline.
At a Glance
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.
- CVE Published
- Nov 18, 2015
- Exploitation Reported
- Nov 03, 2021
- CVSS
- 9.8 Critical
- EPSS
- —
Affected Versions
| Vendor | Product | Version | Status |
|---|---|---|---|
| n/a |
n/a
|
n/a |
Affected |
CVE References
- 42806 exploit-db.com · Exploit https://www.exploit-db.com/exploits/42806/
- 46628 exploit-db.com · Exploit https://www.exploit-db.com/exploits/46628/
- 1038292 securitytracker.com · VDB Entry http://www.securitytracker.com/id/1038292
- 77539 securityfocus.com · VDB Entry http://www.securityfocus.com/bid/77539
- [oss-security] 20151117 Re: Assign CVE for common-collections remote code execution on deserialisation flaw openwall.com · Mailing List http://www.openwall.com/lists/oss-security/2015/11/17/19
Show 10 more references
- oracle.com/technetwork/security-advisory/cpujan2018-323... oracle.com · CVE Record http://www.oracle.com/technetwork/security-advisory/cpujan2018-323662...
- oracle.com/technetwork/security-advisory/cpuapr2017-323... oracle.com · CVE Record http://www.oracle.com/technetwork/security-advisory/cpuapr2017-323661...
- oracle.com/technetwork/topics/security/cpujan2016-23679... oracle.com · CVE Record http://www.oracle.com/technetwork/topics/security/cpujan2016-2367955....
- oracle.com/technetwork/security-advisory/cpuoct2016-288... oracle.com · CVE Record http://www.oracle.com/technetwork/security-advisory/cpuoct2016-288172...
- GitHub — foxglovesec/JavaUnserializeExploits github.com · CVE Record https://github.com/foxglovesec/JavaUnserializeExploits/blob/master/we...
- oracle.com/technetwork/security-advisory/cpuoct2017-323... oracle.com · CVE Record http://www.oracle.com/technetwork/security-advisory/cpuoct2017-323662...
- blogs.oracle.com/security/entry/security_alert_cve_2015_4852 blogs.oracle.com · CVE Record https://blogs.oracle.com/security/entry/security_alert_cve_2015_4852
- oracle.com/technetwork/topics/security/alert-cve-2015-4... oracle.com · CVE Record http://www.oracle.com/technetwork/topics/security/alert-cve-2015-4852...
- foxglovesecurity.com/2015/11/06/what-do-weblogic-websphere-jboss-... foxglovesecurity.com · CVE Record http://foxglovesecurity.com/2015/11/06/what-do-weblogic-websphere-jbo...
- packetstormsecurity.com/files/152268/Oracle-Weblogic-Server-Deserial... packetstormsecurity.com · CVE Record http://packetstormsecurity.com/files/152268/Oracle-Weblogic-Server-De...
Recommended Actions
- Prioritize remediation. Validate affected assets and apply vendor fixes on an accelerated timeline.
- Check enrichment artifacts for scanner coverage and available PoCs before rolling remediation validation.
- Use the Pro API to automate enrichment, telemetry, and workflow delivery for VM, SOC, and CTI pipelines.
Known Exploited Vulnerability Sources
Catalogues that list this CVE as a known exploited vulnerability.
Per-source evidence links for KEV attestations are available through the KEVIntel Pro API.
Learn about Pro API access| Source | Added |
|---|---|
| CISA First | 2021-11-03 00:00 UTC |
Scanner Artifacts
Nuclei and Metasploit references linked to this CVE.
| Scanner | Reference | Detected |
|---|---|---|
| Metasploit | https://github.com/rapid7/metasploit-framework/blob/master/modules/exploits/multi/misc/weblogic_deserialize_rawobject.rb | Apr 28, 2025 |
Virtual Patch
Compensating WAF rules to help reduce exposure to this CVE. Rule content and deployable vendor exports are available with KEVIntel Enterprise.
KEVIntel does not currently have a virtual patch for this CVE. When available, KEVIntel virtual patches ship as deployable ModSecurity, Cloudflare, and AWS WAF rules.
Enterprise feature. Virtual patch rule content and deployable vendor exports (ModSecurity, Cloudflare, AWS WAF) are available to KEVIntel Enterprise users.
CVSS Scores
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
AV:N/AC:L/Au:N/C:P/I:P/A:P
Exploitation Status
Exploited in the wild
Recorded 2021-11-03 00:00:00 UTC · CISA
Proof of concept available
Recorded 2020-11-16 05:30:04 UTC · GitHub
Weaknesses (CWE)
-
Deserialization of Untrusted Data
Scanner Integrations
| Scanner | Reference | Detected |
|---|---|---|
| Metasploit | https://github.com/rapid7/metasploit-framework/blob/master/modules/exploits/multi/misc/weblogic_deserialize_rawobject.rb | Apr 28, 2025 |
Potential Proof of Concepts
These PoCs are unverified and could contain malware. Use at your own risk.
github · Created 2020-11-16 05:30:04 UTC · 1 stars
Timeline
Key exploitation, disclosure, scanner coverage, and KEV attestation events for this CVE.
-
15:02 UTC about 1 year ago15:02 UTC · about 1 year ago
Metasploit module available
Exploit module available
-
00:00 UTC over 4 years ago00:00 UTC · over 4 years ago
Added to CISA KEV
Listed in the CISA Known Exploited Vulnerabilities catalog
-
05:30 UTC over 5 years ago05:30 UTC · over 5 years ago
Public PoC available
Public proof-of-concept code published
-
15:00 UTC over 10 years ago15:00 UTC · over 10 years ago
CVE published
Vulnerability disclosed publicly
-
00:00 UTC about 11 years ago00:00 UTC · about 11 years ago
CVE ID reserved
Identifier reserved by the CNA
Automate This Intelligence with the Pro API
Confidence scoring, exploit status, sensor telemetry, PoCs, scanner integrations, mentions, and tags are available programmatically for VM, SOC, and CTI workflows.
Pro API Example
GET /api/v2/pro/kevs/CVE-2015-4852
{
"cve_id": "CVE-2015-4852",
"title": "The WLS Security component in Oracle WebLogic Server 10.3.6.0, 12.1.2.0, 12.1...",
"affected_vendor": "Oracle",
"affected_product": "WebLogic Server",
"affected_versions": [
{ "vendor": "...", "product": "...", "status": "affected", "display_label": "..." }
],
"confidence": "Confirmed",
"cvss_score": 9.8,
"epss_score": null,
"exploit_status": {
"exploited_in_the_wild": true,
"active_exploitation_observed": false
},
"sensor_telemetry": { "...": "Pro API fields" },
"proof_of_concepts": [ "..." ],
"scanner_integrations": [ "..." ]
}