// CVE

CVE-2026-21962

Critical 10.0 Exploited (KEV)

Oracle Corporation Oracle HTTP Server, Oracle Weblogic Server Proxy Plug-in

10.0CVSS
71%EPSS
YesCISA KEV

Summary

Vulnerability in the Oracle HTTP Server, Oracle Weblogic Server Proxy Plug-in product of Oracle Fusion Middleware (component: Weblogic Server Proxy Plug-in for Apache HTTP Server, Weblogic Server Proxy Plug-in for IIS). Supported versions…

Published: 2026-01-20 · In KEV since: 2026-08-24

Analysis

🔴 Critical — actively exploited

How it's exploited: Exploitable over the network (internet-reachable), unauthenticated, no user interaction, and with low complexity. The flaw can pivot to other components (scope changed).

⚠️ Critical combo: remote, unauthenticated and no interaction → trivial to automate.

Impact: Confidentiality high · Integrity high · Availability none.

Status: Active exploitation confirmed by CISA (KEV).

How to defend:
  • Patch now: it is in CISA's actively-exploited catalog (KEV), with a deadline.
  • Reduce exposure: keep it off the internet; firewall, VPN or network segmentation.
  • Detect: turn this CVE into detection rules.

CVSS vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:N

The vector encodes how it's exploited (translated above, in the analysis). Break it down in the CVSS tool →

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Sources: CISA KEV · EPSS · FIRST.org · NVD. Analysis derived from the CVSS vector and exploitation status (no AI). Informational; always verify against the vendor's official advisory.