CVE-2024-27267Network attack vector

Remote service interruption via ORB listener race

Published Aug 14, 2024 · Updated Sep 29, 2025

An ORB race in IBM SDK, Java Technology Edition allows remote attackers to interrupt service through network requests. Listener-thread management lacks proper synchronization in 7.1.0.0 through 7.1.5.18 and 8.0.0.0 through 8.0.8.26, allowing concurrent activity to destabilize the ORB. No authentication or user interaction is required, but exploitation has high complexity and affects availability without reported data disclosure or modification.

CVSS severity5.9
Medium
EPSS probability0.45%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

An ORB race in IBM SDK, Java Technology Edition allows remote attackers to interrupt service through network requests. Listener-thread management lacks proper synchronization in 7.1.0.0 through 7.1.5.18 and 8.0.0.0 through 8.0.8.26, allowing concurrent activity to destabilize the ORB. No authentication or user interaction is required, but exploitation has high complexity and affects availability without reported data disclosure or modification.

The record

CVE
CVE-2024-27267
Published
Aug 14, 2024
Updated
Sep 29, 2025
Vendor
IBM
Product
IBM SDK, Java Technology Edition
Classifications
CWE-362, T1499.004
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Aug 14, 2024CVE publishedPublication date reported by the CVE source.
  2. Sep 29, 2025Record 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=7.1.0.0 <=7.1.5.18
  2. Affected versionversion=8.0.0.0 <=8.0.8.26

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

IBM · IBM SDK, Java Technology Editionversion=7.1.0.0 <=7.1.5.18; version=8.0.0.0 <=8.0.8.26

Published CVSS scores

5.9IBM CorporationCVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H
5.9NISTCVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H

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-362Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition')
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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