CVE-2025-33111Network attack vector

Authenticated information disclosure via temporary-file race

Published Dec 8, 2025 · Updated Dec 9, 2025

Information disclosure in IBM Controller 11.1.0 through 11.1.1 allows remote authenticated users to read sensitive temporary data. The affected temporary-file handling creates files without an atomic operation, allowing another authenticated user to win a race and access their contents. IBM has not disclosed the file, function, or triggering workflow; exploitation requires authenticated network access and affects confidentiality only.

CVSS severity4.3
Medium
EPSS probability0.21%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Information disclosure in IBM Controller 11.1.0 through 11.1.1 allows remote authenticated users to read sensitive temporary data. The affected temporary-file handling creates files without an atomic operation, allowing another authenticated user to win a race and access their contents. IBM has not disclosed the file, function, or triggering workflow; exploitation requires authenticated network access and affects confidentiality only.

The record

CVE
CVE-2025-33111
Published
Dec 8, 2025
Updated
Dec 9, 2025
Vendor
IBM
Product
IBM Controller
Classifications
CWE-379
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Dec 8, 2025CVE publishedPublication date reported by the CVE source.
  2. Dec 9, 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=11.0.0 <=11.0.1 FP6
  2. Affected versionversion=11.1.0 <=11.1.1

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

IBM · IBM Controllerversion=11.0.0 <=11.0.1 FP6; version=11.1.0 <=11.1.1

Published CVSS scores

4.3IBMCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N

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
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-379Creation of Temporary File in Directory with Insecure Permissions

Public exploit references

No public exploit references are available in this record.

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Technologies

Your stack

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Your stack

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