Nov 2026: Microsoft Office Outlook Information Disclosure Vulnerability
CVE-2026-119993 Published on November 10, 2026
Microsoft Office Outlook Information Disclosure Vulnerability
Access of resource using incompatible type ('type confusion') in Microsoft Office Outlook allows an unauthorized attacker to disclose information over a network.
Vulnerability Analysis
Weakness Types
What is an Object Type Confusion Vulnerability?
The program allocates or initializes a resource such as a pointer, object, or variable using one type, but it later accesses that resource using a type that is incompatible with the original type.
CVE-2026-119993 has been classified to as an Object Type Confusion vulnerability or weakness.
Untrusted Pointer Dereference
The program obtains a value from an untrusted source, converts this value to a pointer, and dereferences the resulting pointer.
Products Associated with CVE-2026-119993
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Affected Versions
Microsoft 365 Apps for Enterprise:- Version 16.0.1 and below https://aka.ms/OfficeSecurityReleases is affected.
- Version 16.0.1 and below 16.0.14334.21048 is affected.
- Version 16.0.0 and below 16.0.17932.21140 is affected.