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The vulnerability CVE-2025-36015 is caused by improper validation of a specified quantity size input within IBM Controller and IBM Cognos Controller software. This flaw is classified under the common weakness CWE-1284, where the product receives input expected to specify a quantity—such as size, length, or number of operations—but fails to correctly validate that the quantity has the required properties. An authenticated user can exploit this by submitting a crafted malicious input value to a vulnerable function. The application does not properly check this input, allowing the specified quantity to trigger excessive resource allocation within the system. This could involve allocating an improperly large amount of memory or causing an unexpected failure in a critical process. As the system attempts to process this malicious quantity, it consumes disproportionate resources, leading to a degradation in performance or a complete denial of service (DoS) condition. The attack is network-based, requires low attack complexity, and needs the attacker to have low-privilege authenticated access. Successful exploitation impacts system availability but does not compromise data confidentiality or integrity. The CVSS 3.1 base score is 6.5 (Medium), with vector AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H.
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Platform: IBM Controller
Version: 11.1.0-11.1.1
Vulnerability: Improper input validation
Severity: Medium
date: 2025-12-08
Prediction: Patches available
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EPSS Score: 0.04% probability
CVSS Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
CWE: CWE-1284
Bash Commands and Codes
Check the current IBM Controller version (Conceptual example. Actual command may vary.) grep "Version" /opt/ibm/controller/version.properties Script example for applying the IBM-recommended interim fix for related vulnerabilities 1. Navigate to the frontend directory cd C:\ccr_64\frontend 2. Execute the patch script with PowerShell powershell -ExecutionPolicy Bypass -File ControllerWebUIService_11_X_Patch.ps1 3. Restart the Web UI service net stop "IBM Controller Web UI" net start "IBM Controller Web UI"
How Exploit
An attacker with a standard user account sends a network request containing a maliciously large or malformed quantity parameter to a vulnerable endpoint. The application processes this input without validating the bounds or sanity of the quantity. This causes an internal function to allocate excessive memory or enter a faulty state, consuming critical system resources and crashing the service.
Protection from this CVE
Apply the official IBM fix by upgrading to IBM Controller version 11.1.2 or IBM Cognos Controller version 11.0.1 FP7. Implement strict input validation on all quantity fields, rejecting values outside expected bounds. Follow the principle of least privilege for user accounts.
Impact
High impact on system availability, leading to denial of service. Disruption of financial consolidation and reporting operations. No direct impact on data confidentiality or integrity.
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Reported By: nvd.nist.gov
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