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CVE-2026-34305 Oracle WebLogic Server

Affected softwareOracle WebLogic Server
Affected versions12.2.1.4.0, 14.1.1.0.0, 14.1.2.0.0, 15.1.1.0.0
Severity7.5 High CVSS 3.1
Fixed inOracle Critical Patch Update April 2026
WeaknessInformation exposure (CWE-200)
Published21 Apr 2026
Updated26 Oct 2026

Description

Vulnerability in the Oracle WebLogic Server product of Oracle Fusion Middleware (component: Web Services). 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 HTTP 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).

Exploitation status

Proof of concept only

A proof of concept exists, but no reviewed exploit catalogue lists this CVE.

  • CISA KEV not listed
  • VulnCheck KEV not listed
  • CISA Vulnrichment exploitation: poc CISA recorded that an exploit has been demonstrated. Automatable: no, technical impact: partial.
  • Indexed PoC none indexed
  • EPSS 0.33% chance in 30 days

Waratek protection

No exploit published

Within Waratek scope. In the sources we check, nobody has published exploit code for this CVE or reported it being exploited.

This is a proprietary Oracle product. Oracle's security advisory is the source of public detail for this CVE.

  • Protection none
  • Action not pursued
  • Review automated Upstream data
  • Record active
Decided by Nothing to build a rule from yet: no published exploit, no CISA record of exploitation and no source-level change to read
Finding This CVE affects a known product, but nothing published names a fix, and the only sign of an exploit is CISA's assessment that one has been demonstrated. No exploit, write-up or proof of concept is published anywhere VRT looks, so there is nothing to trace a rule from. That is a statement about the evidence, not about the defect: CISA's claim still stands, and the CVE's exploit maturity still reports it.

Affected software and releases

Oracle advisories

AdvisoryTypeQuarterProducts Oracle names in its risk matrix
Oracle Critical Patch Update April 2026 ↗ CPU 2026-Q2 Oracle Fusion Middleware / Web Services (12.2.1.4.0, 14.1.1.0.0, 14.1.2.0.0, 15.1.1.0.0)

Oracle components and versions

FamilyComponentVersions, as Oracle lists themRead as
Oracle Fusion Middleware Web Services 12.2.1.4.0, 14.1.1.0.0, 14.1.2.0.0, 15.1.1.0.0 12.2.1.4.0 · 14.1.1.0.0 · 14.1.2.0.0 · 15.1.1.0.0

Products and versions

1 product, 4 version entries
SourceVendorProductSchemeAffected versions
nvd oracle weblogic server generic 12.2.1.4.0 · 14.1.1.0.0 · 14.1.2.0.0 · 15.1.1.0.0

References

URLTags
https://www.oracle.com/security-alerts/cpuapr2026.html Vendor Advisory

Timeline

Published2026-04-21By the CVE Program.
NVD record modified2026-10-26NVD's own last-modified date for this record.