CVE-2022-21626Network attack vector

Unauthenticated partial service interruption

Published Oct 18, 2022 · Updated May 27, 2026

Denial of service in Oracle Java SE 8u341, 8u345-perf, and 11.0.16.1 allows remote attackers to cause a partial service interruption via HTTPS. Oracle has not disclosed the flawed operation within the Security component or the exact form of untrusted input. Exposure requires a sandboxed Java Web Start application or applet that runs untrusted code, or a service that passes attacker-controlled data to affected Security APIs.

CVSS severity5.3
Medium
EPSS probability1.91%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Denial of service in Oracle Java SE 8u341, 8u345-perf, and 11.0.16.1 allows remote attackers to cause a partial service interruption via HTTPS. Oracle has not disclosed the flawed operation within the Security component or the exact form of untrusted input. Exposure requires a sandboxed Java Web Start application or applet that runs untrusted code, or a service that passes attacker-controlled data to affected Security APIs.

The record

CVE
CVE-2022-21626
Published
Oct 18, 2022
Updated
May 27, 2026
Vendor
Oracle Corporation
Product
Java Platform, Standard Edition (Java SE)
Classifications
CWE-693, T1499.004
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

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:20.3.7
  2. Affected versionversion=Oracle GraalVM Enterprise Edition:21.3.3
  3. Affected versionversion=Oracle GraalVM Enterprise Edition:22.2.0
  4. Affected versionversion=Oracle Java SE:11.0.16.1
  5. Affected versionversion=Oracle Java SE:8u341
  6. Affected versionversion=Oracle Java SE:8u345-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:20.3.7; version=Oracle GraalVM Enterprise Edition:21.3.3; version=Oracle GraalVM Enterprise Edition:22.2.0; version=Oracle Java SE:11.0.16.1; version=Oracle Java SE:8u341; version=Oracle Java SE:8u345-perf

Published CVSS scores

5.3Oracle CorporationCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/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)
Vectornetwork
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-693Protection Mechanism Failure
T1499.004Application or System Exploitation

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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