Summary
Impact: Information Disclosure. Microsoft rating: Important. Not known to be exploited — Exploitation Less Likely. Customer action: Required.
Details
What type of information could be disclosed by this vulnerability?
The type of information that could be disclosed if an attacker successfully exploited this vulnerability is uninitialized memory and kernel memory - unintentional read access to memory contents in kernel space from a user mode process.
Security updates
16.0.20430.20000 — https://support.microsoft.com/en-us/microsoft-365
Vulnerabilities 1
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Medium 5.5
Microsoft Office Graphics Component Information Disclosure Vulnerability
Use of uninitialized resource in Microsoft Graphics Component allows an authorized attacker to disclose information locally.
Revision history
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#1
Information published.
References
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CVE-2026-105731 Microsoft Office Graphics Component Information Disclosure Vulnerability - HTML
https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-105731
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Microsoft Exploitability Index
https://www.microsoft.com/en-us/msrc/exploitability-index?rtc=1
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Microsoft Support Lifecycle
https://support.microsoft.com/lifecycle
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Common Vulnerability Scoring System
https://www.first.org/cvss