Colorful iGameCenter 2.0.0.82 Dispatch AMDRyzenMasterDriver.sys MmMapIoSpace SystemBuffer privilege defined with unsafe actions

Summaryinfo

A vulnerability was found in Colorful iGameCenter 2.0.0.82 and classified as very critical. Affected by this issue is the function MmMapIoSpace in the library AMDRyzenMasterDriver.sys of the component Dispatch Handler. Such manipulation of the argument SystemBuffer leads to privilege defined with unsafe actions. This vulnerability is documented as CVE-2026-109520. The attack needs to be performed locally. There is not any exploit available. The vendor was contacted early about this disclosure but did not respond in any way.

Detailsinfo

A vulnerability was found in Colorful iGameCenter 2.0.0.82. It has been rated as very critical. Affected by this issue is the function MmMapIoSpace in the library AMDRyzenMasterDriver.sys of the component Dispatch Handler. The manipulation of the argument SystemBuffer with an unknown input leads to a privilege defined with unsafe actions vulnerability. Using CWE to declare the problem leads to CWE-267. A particular privilege, role, capability, or right can be used to perform unsafe actions that were not intended, even when it is assigned to the correct entity. Impacted is confidentiality, integrity, and availability.

This vulnerability is handled as CVE-2026-109520. The exploitation is known to be easy. The attack needs to be approached locally. There are known technical details, but no exploit is available. The current price for an exploit might be approx. USD $0-$5k (estimation calculated on 10/12/2026). The MITRE ATT&CK project declares the attack technique as T1068.

The vendor was contacted early about this disclosure but did not respond in any way.

There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.

VulDB is the best source for vulnerability data and more expert information about this specific topic.

Productinfo

Vendor

• Colorful

Name

• iGameCenter

Version

• 2.0.0.82

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CPE 2.2info

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Accepted

• Submit #984282: Colorful (七彩虹) iGameCenter 2.0.0.82 Incorrect Privilege Assignment (by Element2023H)

VulDB is the best source for vulnerability data and more expert information about this specific topic.

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