CVE-2023-21986

Local data modification and service interruption

Published Apr 18, 2023 · Updated Sep 16, 2024

An unspecified Native Image flaw in Oracle GraalVM Enterprise Edition 20.3.9, 21.3.5, and 22.3.1 allows local users to alter data and interrupt service. Oracle has not published the affected code locus or the incorrect operation performed by Native Image. Exploitation requires logon to the execution infrastructure and permits changes to some accessible data and a partial service interruption, with possible impact beyond the runtime.

CVSS severity5.7
Medium
EPSS probability0.28%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

An unspecified Native Image flaw in Oracle GraalVM Enterprise Edition 20.3.9, 21.3.5, and 22.3.1 allows local users to alter data and interrupt service. Oracle has not published the affected code locus or the incorrect operation performed by Native Image. Exploitation requires logon to the execution infrastructure and permits changes to some accessible data and a partial service interruption, with possible impact beyond the runtime.

The record

CVE
CVE-2023-21986
Published
Apr 18, 2023
Updated
Sep 16, 2024
Vendor
Oracle Corporation
Product
Oracle GraalVM Enterprise Edition
Classifications
Unavailable
Attack vector
local
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=Oracle GraalVM Enterprise Edition:20.3.9
  2. Affected versionversion=Oracle GraalVM Enterprise Edition:21.3.5
  3. Affected versionversion=Oracle GraalVM Enterprise Edition:22.3.1

What conditions does exploitation require?

Attack vectorlocal
Required privilegesunauthenticated

What is affected?

Oracle Corporation · Oracle GraalVM Enterprise Editionversion=Oracle GraalVM Enterprise Edition:20.3.9; version=Oracle GraalVM Enterprise Edition:21.3.5; version=Oracle GraalVM Enterprise Edition:22.3.1

Published CVSS scores

5.7Oracle CorporationCVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:C/C:N/I:L/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 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectorlocal
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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