Qt up to 6.9.1 ICC Profile fromICCProfile denial of service

Summaryinfo

A vulnerability, which was classified as problematic, has been found in Qt up to 6.5.x/6.8.2/6.8.3/6.9.0/6.9.1. This affects the function QColorSpace::fromICCProfile of the component ICC Profile Handler. This manipulation causes denial of service. This vulnerability appears as CVE-2025-5992. The attack may be initiated remotely. There is no available exploit. It is advisable to upgrade the affected component.

Detailsinfo

A vulnerability has been found in Qt up to 6.5.x/6.8.2/6.8.3/6.9.0/6.9.1 and classified as problematic. Affected by this vulnerability is the function QColorSpace::fromICCProfile of the component ICC Profile Handler. The manipulation with an unknown input leads to a denial of service vulnerability. The CWE definition for the vulnerability is CWE-404. The product does not release or incorrectly releases a resource before it is made available for re-use. As an impact it is known to affect availability. The summary by CVE is:

When passing values outside of the expected range to QColorTransferGenericFunction it can cause a denial of service, for example, this can happen when passing a specifically crafted ICC profile to QColorSpace::fromICCProfile.This issue affects Qt from 6.6.0 through 6.8.3, from 6.9.0 through 6.9.1. This is fixed in 6.8.4 and 6.9.2.

The weakness was presented by OSS-Fuzz. The advisory is shared at codereview.qt-project.org. This vulnerability is known as CVE-2025-5992 since 06/11/2025. The exploitation appears to be difficult. The attack can be launched remotely. The exploitation doesn't need any form of authentication. It demands that the victim is doing some kind of user interaction. Technical details are known, but no exploit is available. MITRE ATT&CK project uses the attack technique T1499 for this issue.

The vulnerability scanner Nessus provides a plugin with the ID 246833 (Linux Distros Unpatched Vulnerability : CVE-2025-5992), which helps to determine the existence of the flaw in a target environment.

Upgrading to version 6.6.0, 6.8.3 or 6.9.1 eliminates this vulnerability.

The vulnerability is also documented in the databases at Tenable (246833) and EUVD (EUVD-2025-21120). If you want to get the best quality for vulnerability data then you always have to consider VulDB.

Productinfo

Name

• Qt

Version

• 6.0
• 6.1
• 6.2
• 6.3
• 6.4
• 6.5
• 6.6
• 6.7
• 6.8
• 6.8.0
• 6.8.1
• 6.8.2
• 6.8.3
• 6.9.0
• 6.9.1

License

• open-source

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If you want to get the best quality for vulnerability data then you always have to consider VulDB.

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