Exploited CVEs / Oracle / CVE-2020-2883
CVE-2020-2883
Oracle WebLogic Server Unspecified Vulnerability. Exploitation in the wild is confirmed by CISA, not predicted. Federal agencies were required to remediate by 2025-01-28 (that deadline has passed); treat that date as the outer bound for your own environment. The fix is in the vendor advisory: Oracle Critical Patch Updates, linked below.
Actively exploited Oracle WebLogic Server vulnerability, Critical severity, CVSS 9.8. Added to the CISA KEV catalog 2025-01-07.
Risk summary
Updated July 25, 2026. Data refreshed on every build from MSRC, CISA KEV, and FIRST EPSS.
Senserva AI Opinion for CVE-2020-2883
This WebLogic flaw lets an unauthenticated attacker on the network gain code execution through the IIOP or T3 protocols, which are often left exposed on internal and internet-facing management ports. It carries Severity Critical (CVSS 9.8), sits on the CISA KEV list as confirmed exploited (added 2025-01-07), and has a 95 percent EPSS exploit probability, so unpatched servers are prime targets.
Do this: Apply Oracle's patch for affected WebLogic Server instances and block or restrict external access to T3 and IIOP ports immediately.
AI-generated from public data, 2026-07-21. Verify against the vendor advisory before acting.
Senserva AI Opinion and rich prompt for CVE-2020-2883
Copy this prompt into Claude, ChatGPT, or Copilot. The facts are included, sourced from this page.
Full tracking and change history for CVE-2020-2883
Published and last-revised dates are authoritative, from Microsoft MSRC (or the CISA KEV date-added). Senserva additionally records day-to-day changes from 2026-07-07, refreshed several times a day; the change count reflects that forward-only tracking.
CISA required action
Federal (BOD 22-01) remediation due date: 2025-01-28 (past due).
Apply mitigations per vendor instructions or discontinue use of the product if mitigations are unavailable.
Official fix for CVE-2020-2883
The authoritative fix and affected-version list are published by the vendor. Find the WebLogic Server advisory on Oracle Critical Patch Updates.
Common questions about CVE-2020-2883
Is CVE-2020-2883 actively exploited?
Yes. CVE-2020-2883 was added to the CISA Known Exploited Vulnerabilities (KEV) catalog on 2025-01-07, which means exploitation in the wild has been confirmed, not predicted. Its EPSS 30-day exploitation probability is 95%.
What is the CISA deadline and required action for CVE-2020-2883?
CISA set the federal (BOD 22-01) remediation due date at 2025-01-28, which has passed; treat any unremediated system as overdue. The verbatim required action: Apply mitigations per vendor instructions or discontinue use of the product if mitigations are unavailable.
What fixes CVE-2020-2883?
The authoritative fix is in the vendor advisory: see Oracle Critical Patch Updates for the patched WebLogic Server versions and any workarounds. KEV listing makes this a fix-first item: patch it ahead of higher-CVSS issues nobody is exploiting.
Can I ask my own AI about CVE-2020-2883?
Yes. This page includes a free, ready-to-paste AI prompt containing CVE-2020-2883's key facts: severity, CVSS, EPSS, the KEV date, the CISA due date, and the required action. Copy it into Claude, ChatGPT, or Copilot; the data is refreshed twice a day (5 AM and 3 PM US Central).
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Authoritative references
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