CVE-2025-3221Network attack vector

Unauthenticated service interruption via unvalidated request resources

Published Jun 21, 2025 · Updated Aug 24, 2025

Resource-exhaustion DoS in IBM InfoSphere Information Server 11.7.0.0 through 11.7.1.6 allows remote attackers to interrupt service. Incoming request resources are insufficiently validated before resource consumption; IBM has not identified the affected endpoint or resource. No authentication or user interaction is required, and exploitation exhausts availability without reported data disclosure or modification.

CVSS severity7.5
High
EPSS probability0.41%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Resource-exhaustion DoS in IBM InfoSphere Information Server 11.7.0.0 through 11.7.1.6 allows remote attackers to interrupt service. Incoming request resources are insufficiently validated before resource consumption; IBM has not identified the affected endpoint or resource. No authentication or user interaction is required, and exploitation exhausts availability without reported data disclosure or modification.

The record

CVE
CVE-2025-3221
Published
Jun 21, 2025
Updated
Aug 24, 2025
Vendor
IBM
Product
InfoSphere Information Server
Classifications
CWE-770, T1499.003
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Jun 21, 2025CVE publishedPublication date reported by the CVE source.
  2. Aug 24, 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=11.7.0.0 <=11.7.1.6

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

IBM · InfoSphere Information Serverversion=11.7.0.0 <=11.7.1.6

Published CVSS scores

7.5IBMCVSS:3.1/AV:N/AC:L/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-770Allocation of Resources Without Limits or Throttling
T1499.003Application 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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