CVE-2023-21839
Confirmed PUBLISHEDVulnerability in the Oracle WebLogic Server product of Oracle Fusion Middleware (component: Core). Supported versions that are affected are...
Recommended Action
Prioritize remediation. Validate affected assets and apply vendor fixes on an accelerated timeline.
At a Glance
Vulnerability in the Oracle WebLogic Server product of Oracle Fusion Middleware (component: Core). Supported versions that are affected are 12.2.1.3.0, 12.2.1.4.0 and 14.1.1.0.0. Easily exploitable vulnerability allows unauthenticated attacker with network access via T3, IIOP to compromise Oracle WebLogic Server. Successful attacks of this vulnerability can result in unauthorized access to critical data or complete access to all Oracle WebLogic Server accessible data. CVSS 3.1 Base Score 7.5 (Confidentiality impacts). CVSS Vector: (CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N).
- CVE Published
- Jan 17, 2023
- Exploitation Reported
- May 01, 2023
- CVSS
- 7.5 High
- EPSS
- —
Affected Versions
| Vendor | Product | Version | Status |
|---|---|---|---|
| Oracle Corporation |
WebLogic Server
|
12.2.1.3.0 |
Affected |
| Oracle Corporation |
WebLogic Server
|
12.2.1.4.0 |
Affected |
| Oracle Corporation |
WebLogic Server
|
14.1.1.0.0 |
Affected |
CVE References
- Oracle Advisory oracle.com · Vendor Advisory https://www.oracle.com/security-alerts/cpujan2023.html
- packetstormsecurity.com/files/172882/Oracle-Weblogic-PreAuth-Remote-... packetstormsecurity.com · CVE Record http://packetstormsecurity.com/files/172882/Oracle-Weblogic-PreAuth-R...
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 | 2023-05-01 00:00 UTC |
Scanner Artifacts
Nuclei and Metasploit references linked to this CVE.
| Scanner | Reference | Detected |
|---|---|---|
| Nuclei | https://github.com/projectdiscovery/nuclei-templates/blob/main/javascript/cves/2023/CVE-2023-21839.yaml | Jun 01, 2026 |
| Metasploit | https://github.com/rapid7/metasploit-framework/blob/master/modules/exploits/multi/iiop/cve_2023_21839_weblogic_rce.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:N/A:N
Exploitation Status
Exploited in the wild
Recorded 2023-05-01 00:00:00 UTC · CISA
Proof of concept available
Recorded 2023-02-21 16:08:56 UTC · GitHub
Weaknesses (CWE)
-
Missing Authentication for Critical Function
Scanner Integrations
| Scanner | Reference | Detected |
|---|---|---|
| Nuclei | https://github.com/projectdiscovery/nuclei-templates/blob/main/javascript/cves/2023/CVE-2023-21839.yaml | Jun 01, 2026 |
| Metasploit | https://github.com/rapid7/metasploit-framework/blob/master/modules/exploits/multi/iiop/cve_2023_21839_weblogic_rce.rb | Apr 28, 2025 |
Potential Proof of Concepts
These PoCs are unverified and could contain malware. Use at your own risk.
github · Created 2023-04-15 08:57:10 UTC · 15 stars
CVE-2023-21839 Python版本
github · Created 2023-02-24 13:54:42 UTC · 85 stars
Weblogic CVE-2023-21839 RCE (无需Java依赖一键RCE)
github · Created 2023-02-21 16:08:56 UTC · 234 stars
nuclei · Created Unknown
Timeline
Key exploitation, disclosure, scanner coverage, and KEV attestation events for this CVE.
-
15:34 UTC about 2 months ago15:34 UTC · about 2 months ago
Nuclei template available
Scanner coverage available
-
15:02 UTC about 1 year ago15:02 UTC · about 1 year ago
Metasploit module available
Exploit module available
-
00:00 UTC about 3 years ago00:00 UTC · about 3 years ago
Added to CISA KEV
Listed in the CISA Known Exploited Vulnerabilities catalog
-
16:08 UTC over 3 years ago16:08 UTC · over 3 years ago
Public PoC available
Public proof-of-concept code published
-
23:35 UTC over 3 years ago23:35 UTC · over 3 years ago
CVE published
Vulnerability disclosed publicly
-
19:26 UTC over 3 years ago19:26 UTC · over 3 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-2023-21839
{
"cve_id": "CVE-2023-21839",
"title": "Vulnerability in the Oracle WebLogic Server product of Oracle Fusion Middlewa...",
"affected_vendor": "Oracle Corporation",
"affected_product": "WebLogic Server",
"affected_versions": [
{ "vendor": "...", "product": "...", "status": "affected", "display_label": "..." }
],
"confidence": "Confirmed",
"cvss_score": 7.5,
"epss_score": null,
"exploit_status": {
"exploited_in_the_wild": true,
"active_exploitation_observed": false
},
"sensor_telemetry": { "...": "Pro API fields" },
"proof_of_concepts": [ "..." ],
"scanner_integrations": [ "..." ]
}