CVE-2023-21956Network attack vector

Unauthorized data modification and disclosure via undisclosed flaw

Published Apr 18, 2023 · Updated Sep 16, 2024

Unspecified Web Container flaw in Oracle WebLogic Server 12.2.1.4.0 and 14.1.1.0.0 allows remote attackers to read and modify data via HTTP. Oracle has not published the faulty Web Container operation or how an HTTP request reaches it. Exploitation requires no authentication but does require interaction by another person; successful attacks expose a data subset and permit some updates, insertions, or deletions.

CVSS severity6.1
Medium
EPSS probability0.41%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Unspecified Web Container flaw in Oracle WebLogic Server 12.2.1.4.0 and 14.1.1.0.0 allows remote attackers to read and modify data via HTTP. Oracle has not published the faulty Web Container operation or how an HTTP request reaches it. Exploitation requires no authentication but does require interaction by another person; successful attacks expose a data subset and permit some updates, insertions, or deletions.

The record

CVE
CVE-2023-21956
Published
Apr 18, 2023
Updated
Sep 16, 2024
Vendor
Oracle Corporation
Product
Oracle WebLogic Server
Classifications
Unavailable
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Apr 18, 2023CVE publishedPublication date reported by the CVE source.
  2. Sep 16, 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=12.2.1.4.0
  2. Affected versionversion=14.1.1.0.0

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

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

Published CVSS scores

6.1Oracle CorporationCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N

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

No sourced classifications are available.

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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