CVE-2022-21560Network attack vector

Partial denial of service via T3 and IIOP

Published Jul 19, 2022 · Updated Sep 24, 2024

Oracle WebLogic Server Core before fixed releases allows remote attackers to cause a partial denial of service via T3 or IIOP. Oracle has not published the specific code-level mechanism or named locus responsible for processing these protocol requests. No authentication or user interaction is required, and the documented consequence is limited to partial service availability loss rather than confidentiality or integrity compromise.

CVSS severity5.3
Medium
EPSS probability1.01%
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 Core before fixed releases allows remote attackers to cause a partial denial of service via T3 or IIOP. Oracle has not published the specific code-level mechanism or named locus responsible for processing these protocol requests. No authentication or user interaction is required, and the documented consequence is limited to partial service availability loss rather than confidentiality or integrity compromise.

The record

CVE
CVE-2022-21560
Published
Jul 19, 2022
Updated
Sep 24, 2024
Vendor
Oracle Corporation
Product
Oracle WebLogic Server
Classifications
T1499
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Jul 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=12.2.1.3.0
  2. Affected versionversion=12.2.1.4.0
  3. Affected versionversion=14.1.1.0.0

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

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

Published CVSS scores

5.3Oracle CorporationCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L

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 9, 2026Sep 15, 2026
Latest reporting daySep 15, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

T1499Endpoint Denial of Service

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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