CVE-2023-21839 kev in the critical feed json
Vulnerability in the Oracle WebLogic Server product of Oracle Fusion Middleware (component: Core).
published 2023-01-17 3 y ago modified 2026-06-17 4 mo ago also EUVD-2023-26005
- cvss
- 7.5
- version 3.1, CNA
- cisa kev
- Exploited
- added 2023-05-01
- epss
- 99.9%
- EPSS 99.9% chance of exploitation in 30 days, percentile 99.9%
- public exploits
- 1
- Metasploit, plus a Nuclei check
Summary
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).
Patch / fix
cisa required action Apply updates per vendor instructions.
Timeline
- First public exploit (Metasploit exploit/multi/iiop/cve_2023_21839_weblogic_rce)
- Published
- Added to CISA KEV
- CISA patch deadline
- CISA SSVC: exploitation active
Known exploited
- Added
- 3 y ago
- Patch by
- 2023-05-22 (3 y ago)
- Ransomware
- Not known
- Required action
- Apply updates per vendor instructions.
- Vendor, product
- Oracle, WebLogic Server
- CISA name
- Oracle WebLogic Server Unspecified Vulnerability
CISA SSVC
- Exploitation
- Active, exploited in the wild
- Automatable
- yes
- Technical impact
- partial
- Assessed
- 2 y ago
Exploit prediction
99.90% chance of exploitation in the next 30 days, higher than 99.9% of all scored CVEs (FIRST EPSS, 2026-11-08).
Exploits and checks
- Metasploit exploit/multi/iiop/cve_2023_21839_weblogic_rce Oracle Weblogic PreAuth Remote Command Execution via ForeignOpaqueReference IIOP Deserialization metasploit exploit, excellent rank, 2023-01-17
- Nuclei template Oracle WebLogic Server - Unauthorized Access nuclei detection template
- packetstormsecurity.com http://packetstormsecurity.com/files/172882/Oracle-Weblogic-PreAuth-Remote-Command-Execution.html referenced PoC, tagged "exploit" by a source, unverified
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| CNA | 3.1 | 7.5 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N |
Affected products
- Oracle Corporation WebLogic Server
Classification
References
-
oracle.com
/security-alerts/cpujan2023.html
vendor-advisory, patch
-
packetstormsecurity.com
/files/172882/Oracle-Weblogic-PreAuth-Remote-Command-Execution.html
exploit, third-party-advisory, vdb-entry
-
cisa.gov
/known-exploited-vulnerabilities-catalog?field_cve=CVE-2023-21839
government-resource, us-government-resource
Sources
- CVE List CVE-2023-21839
- NVD CVE-2023-21839
Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.