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CVE-2026-83095 – Unauthenticated Remote Takeover – Oracle Forms 12.2.1.19.0 and 14.1.2.0.0

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Summary

CVE-2026-83095 is a critical vulnerability in Oracle Forms caused by missing authentication for a critical function. It allows an unauthenticated attacker with network access via HTTP to fully compromise Oracle Forms, resulting in complete takeover of the affected system. The flaw carries a CVSS v3.1 base score of 9.8 (Critical).

Technical details

  • Root cause: missing authentication controls on a critical function within Oracle Forms (CWE-306, related to CWE-287 Improper Authentication).
  • Trigger conditions: exploitation does not require any credentials or user interaction; the affected function/service is reachable over the network.
  • Attack vector: network-based, over HTTP, against exposed Oracle Forms Services components (Forms Services, C/S, and Charmode).
  • Impact: successful exploitation results in complete compromise of confidentiality, integrity, and availability of Oracle Forms — described by Oracle as a full "takeover" of the product.

Affected software

  • Oracle Forms 12.2.1.19.0
  • Oracle Forms 14.1.2.0.0

Severity

  • CVSS v3.1 Base Score: 9.8 (Critical)
  • Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Mitigation and recommended actions

  • Immediate: Apply the Oracle Critical Patch Update / Security Patch Update released in September 2026, which addresses this vulnerability in Oracle Forms 12.2.1.19.0 and 14.1.2.0.0. Upgrade to the patched version supplied in that update.
  • If patching cannot be performed immediately: restrict network access to Oracle Forms Services (Forms Services, C/S, and Charmode endpoints) to trusted networks only, and avoid exposing the Forms servlet/service directly to the internet until the patch is applied.

References

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