CVE-2022-21306Network attack vector

Unauthenticated remote server takeover

Published Jan 19, 2022 · Updated Sep 24, 2024

Oracle WebLogic Server 12.1.3.0.0, 12.2.1.3.0, 12.2.1.4.0, and 14.1.1.0.0 allow remote attackers to take over the server via T3. Oracle identifies the Core component but has not disclosed the request-processing error or affected function that mishandles T3 traffic. No authentication or user interaction is required, and successful exploitation grants control over server data and service availability.

CVSS severity9.8
Critical
EPSS probability4.14%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Oracle WebLogic Server 12.1.3.0.0, 12.2.1.3.0, 12.2.1.4.0, and 14.1.1.0.0 allow remote attackers to take over the server via T3. Oracle identifies the Core component but has not disclosed the request-processing error or affected function that mishandles T3 traffic. No authentication or user interaction is required, and successful exploitation grants control over server data and service availability.

The record

CVE
CVE-2022-21306
Published
Jan 19, 2022
Updated
Sep 24, 2024
Vendor
Oracle Corporation
Product
Oracle WebLogic Server
Classifications
T1190
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Jan 19, 2022CVE publishedPublication date reported by the CVE source.
  2. Sep 24, 2024Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=12.1.3.0.0
  2. Affected versionversion=12.2.1.3.0
  3. Affected versionversion=12.2.1.4.0
  4. Affected versionversion=14.1.1.0.0

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Oracle Corporation · Oracle WebLogic Serverversion=12.1.3.0.0; version=12.2.1.3.0; version=12.2.1.4.0; version=14.1.1.0.0

Published CVSS scores

9.8Oracle CorporationCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
7.5NIST NVDAV:N/AC:L/Au:N/C:P/I:P/A:P

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

T1190Exploit Public-Facing Application

Public exploit references

No public exploit references are available in this record.

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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