CVE-2023-22081Network attack vector

Unauthenticated service interruption via undisclosed JSSE flaw

Published Oct 17, 2023 · Updated May 28, 2026

Denial of service in JSSE in Oracle Java SE 8u381, 8u381-perf, 11.0.20, 17.0.8, and 21 allows remote attackers to interrupt service via HTTPS. Oracle has not published the faulty JSSE operation or the HTTPS input that triggers the partial denial of service. Reachability requires a deployment that loads and runs untrusted code while relying on the Java sandbox; servers that load only trusted code are outside Oracle's stated exposure.

CVSS severity5.3
Medium
EPSS probability1.41%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
Coverage for this vulnerability

See if you're affected

Explore vulnerability checks for your environment with Hinoki.

Book a demo

Summary

What happened

Denial of service in JSSE in Oracle Java SE 8u381, 8u381-perf, 11.0.20, 17.0.8, and 21 allows remote attackers to interrupt service via HTTPS. Oracle has not published the faulty JSSE operation or the HTTPS input that triggers the partial denial of service. Reachability requires a deployment that loads and runs untrusted code while relying on the Java sandbox; servers that load only trusted code are outside Oracle's stated exposure.

The record

CVE
CVE-2023-22081
Published
Oct 17, 2023
Updated
May 28, 2026
Vendor
Oracle Corporation
Product
Java Platform, Standard Edition (Java SE)
Classifications
T1499
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Oct 17, 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:20.3.11
  2. Affected versionversion=Oracle GraalVM Enterprise Edition:21.3.7
  3. Affected versionversion=Oracle GraalVM Enterprise Edition:22.3.3
  4. Affected versionversion=Oracle GraalVM for JDK:17.0.8
  5. Affected versionversion=Oracle GraalVM for JDK:21
  6. Affected versionversion=Oracle Java SE:11.0.20
  7. Affected versionversion=Oracle Java SE:17.0.8
  8. Affected versionversion=Oracle Java SE:21
  9. Affected versionversion=Oracle Java SE:8u381
  10. 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 GraalVM Enterprise Edition:22.3.3; version=Oracle GraalVM for JDK:17.0.8; version=Oracle GraalVM for JDK:21; version=Oracle Java SE:11.0.20; version=Oracle Java SE:17.0.8; version=Oracle Java SE:21; version=Oracle Java SE:8u381; version=Oracle Java SE:8u381-perf

Published CVSS scores

5.3OracleCVSS: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

T1499Endpoint Denial of Service

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

See the directory against your own environment.

Your stack

Check the software in your environment

Book a demo to see how Hinoki identifies affected software and validates exploitability in your environment.

Book a demo