CVE-2022-21618Network attack vector

Unauthorized data modification via undisclosed JGSS flaw

Published Oct 18, 2022 · Updated May 27, 2026

Improper authentication in Oracle Java SE JGSS 17.0.4.1 and 19 allows remote attackers to modify accessible data via Kerberos. Oracle identifies JGSS as the affected component but does not disclose the faulty operation or how Kerberos input bypasses its checks. Exploitation requires network access to Kerberos or attacker-controlled data reaching JGSS APIs, including through a web service or sandboxed untrusted code.

CVSS severity5.3
Medium
EPSS probability2.23%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Improper authentication in Oracle Java SE JGSS 17.0.4.1 and 19 allows remote attackers to modify accessible data via Kerberos. Oracle identifies JGSS as the affected component but does not disclose the faulty operation or how Kerberos input bypasses its checks. Exploitation requires network access to Kerberos or attacker-controlled data reaching JGSS APIs, including through a web service or sandboxed untrusted code.

The record

CVE
CVE-2022-21618
Published
Oct 18, 2022
Updated
May 27, 2026
Vendor
Oracle Corporation
Product
Java Platform, Standard Edition (Java SE)
Classifications
CWE-287
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Oct 18, 2022CVE publishedPublication date reported by the CVE source.
  2. May 27, 2026Record 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:21.3.3
  2. Affected versionversion=Oracle GraalVM Enterprise Edition:22.2.0
  3. Affected versionversion=Oracle Java SE:17.0.4.1
  4. Affected versionversion=Oracle Java SE:19

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:21.3.3; version=Oracle GraalVM Enterprise Edition:22.2.0; version=Oracle Java SE:17.0.4.1; version=Oracle Java SE:19

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 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

CWE-287Improper Authentication

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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