CVE-2023-22045Network attack vector

Unauthorized data reads via array-index integer overflow

Published Jul 18, 2023 · Updated May 28, 2026

Integer overflow in HotSpot in affected Oracle Java SE and GraalVM releases allows remote attackers to read a subset of accessible data. HotSpot performs an array-index calculation that can overflow on untrusted input; public records do not identify the affected function or exact operation. Exploitation requires a network-reachable API path or untrusted sandboxed client code, and the reported consequence is limited to unauthorized reads.

CVSS severity3.7
Low
EPSS probability1.32%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Integer overflow in HotSpot in affected Oracle Java SE and GraalVM releases allows remote attackers to read a subset of accessible data. HotSpot performs an array-index calculation that can overflow on untrusted input; public records do not identify the affected function or exact operation. Exploitation requires a network-reachable API path or untrusted sandboxed client code, and the reported consequence is limited to unauthorized reads.

The record

CVE
CVE-2023-22045
Published
Jul 18, 2023
Updated
May 28, 2026
Vendor
Oracle Corporation
Product
Java Platform, Standard Edition (Java SE)
Classifications
Unavailable
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Jul 18, 2023CVE publishedPublication date reported by the CVE source.
  2. May 28, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

Compare your product and version with the public record. A matching version still requires validation against your environment.

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:20.3.10
  2. Affected versionversion=Oracle GraalVM Enterprise Edition:21.3.6
  3. Affected versionversion=Oracle GraalVM Enterprise Edition:22.3.2
  4. Affected versionversion=Oracle GraalVM for JDK:17.0.7
  5. Affected versionversion=Oracle GraalVM for JDK:20.0.1
  6. Affected versionversion=Oracle Java SE:11.0.19
  7. Affected versionversion=Oracle Java SE:17.0.7
  8. Affected versionversion=Oracle Java SE:20.0.1
  9. Affected versionversion=Oracle Java SE:8u371
  10. Affected versionversion=Oracle Java SE:8u371-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:20.3.10; version=Oracle GraalVM Enterprise Edition:21.3.6; version=Oracle GraalVM Enterprise Edition:22.3.2; version=Oracle GraalVM for JDK:17.0.7; version=Oracle GraalVM for JDK:20.0.1; version=Oracle Java SE:11.0.19; version=Oracle Java SE:17.0.7; version=Oracle Java SE:20.0.1; version=Oracle Java SE:8u371; version=Oracle Java SE:8u371-perf

Published CVSS scores

3.7Oracle CorporationCVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:N/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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