Microsoft Windows ICC File Parsing Out-Of-Bounds Write Remote Code Execution Vulnerability

August 11th, 2026

Vulnerability Details

This vulnerability allows remote attackers to execute arbitrary code on affected installations of Microsoft Windows. Interaction with the Mscms.dll color management library is required to exploit this vulnerability but attack vectors may vary depending on the implementation.

The specific flaw exists within the parsing of ICC color profiles. The issue results from the lack of proper validation of user-supplied data, which can result in a write past the end of an allocated buffer. An attacker can leverage this vulnerability to execute code in the context of the current process.

Additional Details

Microsoft has issued an update to correct this vulnerability. More details can be found at:
https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-54984

Disclosure Timeline

  • 2026-06-02 - Vulnerability reported to vendor
  • 2026-08-11 - Coordinated public release of advisory
  • 2026-08-11 - Advisory Updated

Credit

Kağan Çapar (kagancapar)

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