KEV Intelligence

Vulnerability report

Active exploitation observed Confirmed confidence In CISA KEV

CVE-2020-14883

WebLogic Server

Oracle Corporation / WebLogic Server · 10.3.6.0.0

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Severity
CVSS 7.2 · High
Confidence
Confirmed
Exploit status
Observed in sensors
EPSS
97.9%
First observed
12 Jun 2026
Last observed
18 Aug 2026

Decision summary

What security teams need to know first

Direct answers before the deeper technical record.

What it is

CVE-2020-14883 is a vulnerability affecting Oracle Corporation WebLogic Server. Vulnerability in the Oracle WebLogic Server product of Oracle Fusion Middleware (component: Console). Supported versions that are...

Is it exploited?

Yes. KEV Intelligence sensors observed exploitation attempts with confirmed confidence.

Who is affected?

Oracle Corporation / WebLogic Server 10.3.6.0.0.

What should we do?

Patch immediately, validate internet-facing exposure, and monitor for matching requests.

Overview

Vulnerability in the Oracle WebLogic Server product of Oracle Fusion Middleware (component: Console)

Vulnerability in the Oracle WebLogic Server product of Oracle Fusion Middleware (component: Console). Supported versions that are affected are 10.3.6.0.0, 12.1.3.0.0, 12.2.1.3.0, 12.2.1.4.0 and 14.1.1.0.0. Easily exploitable vulnerability allows high privileged attacker with network access via HTTP to compromise Oracle WebLogic Server.

Successful attacks of this vulnerability can result in takeover of Oracle WebLogic Server. CVSS 3.1 Base Score 7.2 (Confidentiality, Integrity and Availability impacts). CVSS Vector: (CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H).

Vendor Product Affected Status
Oracle Corporation WebLogic Server 10.3.6.0.0 Affected
Oracle Corporation WebLogic Server 12.1.3.0.0 Affected
Oracle Corporation WebLogic Server 12.2.1.3.0 Affected
Oracle Corporation WebLogic Server 12.2.1.4.0 Affected
Oracle Corporation WebLogic Server 14.1.1.0.0 Affected
Published
21 Oct 2020
Exploitation Reported
03 Nov 2021
Attack vector
Remote
Complexity
Low
Privileges
High
User interaction
None

Tags

nuclei_scanner cisa metasploit

CVE References

Exploitation evidence

Why KEV Intelligence marks this CVE as exploited

Third-party attestation and first-party sensor observation are shown separately so teams can judge the evidence chain.

Exploited in the wild

CISA

Recorded 03 Nov 2021

Independent exploitation attestation added to the KEV Intelligence record.

Active exploitation observed

KEV Intelligence sensor

First observed 12 Jun 2026

First-party sensor telemetry confirms matching exploitation attempts.

Proof of concept available

GitHub

Recorded 09 Nov 2020

Public scanner or PoC coverage increases practical exploitability.

Known exploited vulnerability sources

Per-source evidence links for KEV attestations are available through the KEV Intelligence Pro API.

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Source Added
CISA First 2021-11-03 00:00 UTC
KEV Intelligence 2026-06-12 00:32 UTC
The Shadowserver 2026-08-15 00:00 UTC

Operational indicators for this CVE are listed under Detection.

Sensor telemetry

First-party evidence of exploitation activity

Aggregate observations show the scale, recency, and distribution of activity without overstating sparse data.

19

Attempts observed

8

Unique attacker IPs

5

Attacker countries

CN · GB · JP · NL · US

3

Sensors observed

Exploitation attempts over the last 70 days

Daily events observed by KEV Intelligence sensors

Updated 19 Aug 2026

0
1
0
0
0
0
0
0
0
0
1
0
0
0
0
0
1
0
10
6
2
0
54
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
3
0
3
0
2
0
0
0
0
0
0
6
1
3
0
0
0
0
0
0
0
0
0
0
0
0
3
0
0
0
1
0
11 Jun 25 Jun 9 Jul 23 Jul 19 Aug

First observed 12 Jun 2026 · Last observed 18 Aug 2026

Pro adds sensor region and window summaries. Enterprise adds raw IPs, paths, User-Agents, and payloads.

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Detection

Operational artifacts and observed signals

Make the evidence actionable in scanner, SOC, and edge-control workflows.

Observed signals

Request targets
2
User-Agents
16

Raw values available in Pro and Enterprise.

Virtual patch status

KEV Intelligence virtual patch guidance is available for this CVE.

AWS WAF Cloudflare ModSecurity

Attacker IP Indicators

Attacker IP indicators observed · available in Pro and Enterprise.

Sensor-derived attacker IP indicators are available to Pro and Enterprise accounts under Detection and through the Pro API.

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Scanner Artifacts

Scanner and exploit-framework references linked to this CVE.

Scanner Reference Detected
Metasploit https://github.com/rapid7/metasploit-framework/blob/master/modules/exploits/multi/http/weblogic_admin_handle_rce.rb 28 Apr 2025
Nuclei https://github.com/projectdiscovery/nuclei-templates/blob/main/http/cves/2020/CVE-2020-14883.yaml 25 Apr 2025

Virtual Patch Detail

Compensating WAF rules for this CVE.

Available

Enterprise feature. Virtual patch rule content and deployable vendor exports (ModSecurity, Cloudflare, AWS WAF) are available to KEV Intelligence Enterprise users.

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Risk and context

Severity, weaknesses, and research context

CVSS v3.1

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

EPSS

97.9%

All CVSS Scores

CVSS v3.1 7.2 High

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

CVSS v2.0 9.0 High

AV:N/AC:L/Au:S/C:C/I:C/A:C

Potential Proof of Concepts

These PoCs are unverified and could contain malware. Use at your own risk.

Oracle Fusion Middleware WebLogic Server Administration Console - Remote Code Execution

nuclei · Created Unknown

Timeline

From disclosure to observed exploitation

  1. KEV confirmed by The Shadowserver

    Exploitation attested by an external source

  2. Virtual patch available

    Compensating WAF rule available to block exploitation

  3. Public PoC available

    Public proof-of-concept code published

  4. Observed by KEV Intelligence sensors

    Evidence-backed exploitation signal

  5. Indicators of compromise added (31)

    Indicators of compromise recorded

  6. Metasploit module available

    Exploit module available

  7. Nuclei template available

    Scanner coverage available

  8. Added to CISA KEV

    Listed in the CISA Known Exploited Vulnerabilities catalog

  9. CVE published

    Vulnerability disclosed publicly

  10. CVE ID reserved

    Identifier reserved by the CNA

Pro API

Automate this intelligence

Confidence, exploit status, sensor telemetry, PoCs, scanner integrations, mentions, and tags are available programmatically for VM, SOC, and CTI workflows.

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  • Evidence confidence and provenance
  • First-party sensor telemetry
  • PoC and scanner references
  • Affected versions and enrichment
  • Automation-ready JSON delivery

GET /api/v2/pro/kevs/CVE-2020-14883

Free JSON includes basic KEV fields 
{
  "cve_id": "CVE-2020-14883",
  "confidence": "Confirmed",
  "cvss_score": 7.2,
  "cvss_estimated": false,
  "epss_score": 0.97929,
  "exploit_status": {
    "exploited_in_the_wild": true,
    "active_exploitation_observed": true
  },
  "sensor_telemetry": { "attempts": 19, "sensors": 3 }
}

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