CVE-2024-39724Network attack vector

Authenticated service interruption via unthrottled API resource allocation

Published Feb 4, 2026 · Updated Feb 4, 2026

Denial of service in IBM Db2 Big SQL on Cloud Pak for Data 7.6 through 7.8 allows remote authenticated users to interrupt the service. An API allocates system resources without enforcing throttling or allocation limits on authenticated requests. Exploitation requires internal knowledge of the environment and high-complexity request conditions; the reported consequence is service interruption only.

CVSS severity5.3
Medium
EPSS probability0.30%
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 IBM Db2 Big SQL on Cloud Pak for Data 7.6 through 7.8 allows remote authenticated users to interrupt the service. An API allocates system resources without enforcing throttling or allocation limits on authenticated requests. Exploitation requires internal knowledge of the environment and high-complexity request conditions; the reported consequence is service interruption only.

The record

CVE
CVE-2024-39724
Published
Feb 4, 2026
Updated
Feb 4, 2026
Vendor
IBM
Product
Db2 Big SQL on Cloud Pak for Data
Classifications
CWE-770, T1499.002
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Feb 4, 2026CVE publishedPublication date reported by the CVE source.
  2. Feb 4, 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=IBM Db2 Big SQL 7.6 on Cloud Pak for Data 4.8 <=2.1.0
  2. Affected versionversion=IBM Db2 Big SQL 7.7 on Cloud Pak for Data 5.0
  3. Affected versionversion=IBM Db2 Big SQL 7.8 on Cloud Pak for Data 5.1

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

IBM · Db2 Big SQL on Cloud Pak for Dataversion=IBM Db2 Big SQL 7.6 on Cloud Pak for Data 4.8 <=2.1.0; version=IBM Db2 Big SQL 7.7 on Cloud Pak for Data 5.0; version=IBM Db2 Big SQL 7.8 on Cloud Pak for Data 5.1

Published CVSS scores

5.3IBM X-ForceCVSS:3.0/AV:N/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H
5.3IBM CorporationCVSS:3.1/AV:N/AC:H/PR:L/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 9, 2026Sep 15, 2026
Latest reporting daySep 15, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-770Allocation of Resources Without Limits or Throttling
T1499.002Service Exhaustion Flood

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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