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TI-2026-27447 Aliases CVE-2026-35300GHSA-3437-gj43-rx9g

Deserialization of untrusted data in Oracle WebLogic Server

Priority MEDIUM 50CWE-502Published · Updated

Key facts

Attack vector
Network
Privileges required
None
User interaction
None
Attack complexity
Low
Impact type
Code execution
Confidentiality · integrity · availability
High · High · High
Fix status
No fix listed

Attack profile from CVSS 3.1 · CNA. Fix status from CNA. Impact type from CWE-502.

Summary

Vulnerability in the WebLogic Server product of Oracle Fusion Middleware (component: Core). Supported versions that are affected are 12.2.1.4.0, 14.1.1.0.0, 14.1.2.0.0 and 15.1.1.0.0. Easily exploitable vulnerability allows unauthenticated attacker with network access via TCP to compromise WebLogic Server. Successful attacks of this vulnerability can result in takeover of WebLogic Server. CVSS 3.1 Base Score 9.8 (Confidentiality, Integrity and Availability impacts). CVSS Vector: (CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H).

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00565 47th percentileScored 2026-11-07
Fix No fix listed No fixed version in the sources yet

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
None
Automatable
Yes
Technical impact
Total

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

VendorProductAffected versionsFixed inStatusSource
OracleWebLogic Server12.2.1.4.0; 14.1.1.0.0; 14.1.2.0.0; 15.1.1.0.0—No fix listedCNA
  • WebLogic Server VendorOracle Affected 12.2.1.4.0; 14.1.1.0.0; 14.1.2.0.0; 15.1.1.0.0 Fixed in — No fix listed CNA

CPE configurations NVD · 4

CPEVersionsRoleVendor
cpe:2.3:a:oracle:weblogic_server:12.2.1.4.0:*:*:*:*:*:*:*12.2.1.4.0VulnerableOracle
cpe:2.3:a:oracle:weblogic_server:14.1.1.0.0:*:*:*:*:*:*:*14.1.1.0.0VulnerableOracle
cpe:2.3:a:oracle:weblogic_server:14.1.2.0.0:*:*:*:*:*:*:*14.1.2.0.0VulnerableOracle
cpe:2.3:a:oracle:weblogic_server:15.1.1.0.0:*:*:*:*:*:*:*15.1.1.0.0VulnerableOracle
  • cpe:2.3:a:oracle:weblogic_server:12.2.1.4.0:*:*:*:*:*:*:* Versions 12.2.1.4.0 Vulnerable ·Oracle
  • cpe:2.3:a:oracle:weblogic_server:14.1.1.0.0:*:*:*:*:*:*:* Versions 14.1.1.0.0 Vulnerable ·Oracle
  • cpe:2.3:a:oracle:weblogic_server:14.1.2.0.0:*:*:*:*:*:*:* Versions 14.1.2.0.0 Vulnerable ·Oracle
  • cpe:2.3:a:oracle:weblogic_server:15.1.1.0.0:*:*:*:*:*:*:* Versions 15.1.1.0.0 Vulnerable ·Oracle

Remediation

No fixed version listed by the sources yet.

Fixed in the same release

Records fixed by the same vendor advisory or release, as the CNA lists them.

  • Advisory ·

    Oracle WebLogic Server — oracle.com/security-alerts/cspujun2026.html

    13 records Highest priority Priority MEDIUM 9 MEDIUM, 4 LOW

    Other records, highest priority first

    • TI-2026-27448 Missing authentication in Oracle WebLogic ServerPriority MEDIUM 49
    • TI-2026-27440 Missing authentication in Oracle WebLogic ServerPriority MEDIUM 49
    • TI-2026-27412 Improper access control in Oracle WebLogic ServerPriority MEDIUM 43
    Show all 13 records → Advisory →

Timeline

  1. 2026-10-02 Threatist record created from CVE-2026-35300
  2. 2026-10-03 Alias added: GHSA-3437-gj43-rx9g

References

Advisory 1

  • TI-2022-07142 Code injection in Spring Framework KEVCVSS 3.1CRITICAL 9.8
  • TI-2020-11717 Vulnerability in the Oracle WebLogic Server product of Oracle Fusion Middleware… KEVCVSS 3.1CRITICAL 9.8
  • TI-2020-11587 Vulnerability in the Oracle WebLogic Server product of Oracle Fusion Middleware… KEVCVSS 3.1CRITICAL 9.8
  • TI-2020-11493 Vulnerability in the Oracle WebLogic Server product of Oracle Fusion Middleware… KEVCVSS 3.1CRITICAL 9.8
  • TI-2020-02582 Vulnerability in the Oracle WebLogic Server product of Oracle Fusion Middleware… KEVCVSS 3.1CRITICAL 9.8
  • TI-2020-02255 Vulnerability in the Oracle WebLogic Server product of Oracle Fusion Middleware… KEVCVSS 3.1CRITICAL 9.8
See all 361 →

Sources

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