CVE-2023-22067Network attack vector

Data modification via unrestricted IOR deserialization

Published Oct 17, 2023 · Updated Nov 3, 2025

Deserialization in the CORBA component of Oracle Java SE 8u381 and 8u381-perf allows remote attackers to modify accessible data. CORBA stub readObject methods deserialize stringified IORs without restricting corbaname or corbaloc URLs to the expected IOR URI format. Exploitation requires attacker-supplied serialized data to reach affected APIs, such as through a web service; successful attacks update, insert, or delete only accessible data.

CVSS severity5.3
Medium
EPSS probability0.89%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Deserialization in the CORBA component of Oracle Java SE 8u381 and 8u381-perf allows remote attackers to modify accessible data. CORBA stub readObject methods deserialize stringified IORs without restricting corbaname or corbaloc URLs to the expected IOR URI format. Exploitation requires attacker-supplied serialized data to reach affected APIs, such as through a web service; successful attacks update, insert, or delete only accessible data.

The record

CVE
CVE-2023-22067
Published
Oct 17, 2023
Updated
Nov 3, 2025
Vendor
Oracle Corporation
Product
Java Platform, Standard Edition (Java SE)
Classifications
T1190
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Oct 17, 2023CVE publishedPublication date reported by the CVE source.
  2. Nov 3, 2025Record 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=Oracle GraalVM Enterprise Edition:20.3.11
  2. Affected versionversion=Oracle GraalVM Enterprise Edition:21.3.7
  3. Affected versionversion=Oracle Java SE:8u381
  4. Affected versionversion=Oracle Java SE:8u381-perf

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Oracle Corporation · Java Platform, Standard Edition (Java SE)version=Oracle GraalVM Enterprise Edition:20.3.11; version=Oracle GraalVM Enterprise Edition:21.3.7; version=Oracle Java SE:8u381; version=Oracle Java SE:8u381-perf

Published CVSS scores

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

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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