CVE-2026-119993: Microsoft Office Outlook type confusion information disclosure

CVE-2026-119993 · Severity: medium · CVSS 6.5 · Published 2026-11-10

Microsoft Office Outlook contains a type confusion vulnerability that allows attackers to access sensitive information over the network. An attacker could exploit this flaw to read confidential emails, calendar data, or other information stored in Outlook without requiring special privileges or user interaction.

Technologies: Microsoft Office Outlook. Vendors: Microsoft.

Quick answers

Is CVE-2026-119993 exploited in the wild?
No. Junglewise Threat Intelligence has no report of CVE-2026-119993 being exploited in the wild.
How severe is CVE-2026-119993?
Medium severity, with a CVSS score of 6.5, published 10 November 2026.
Which products and versions are affected?
Microsoft Office Outlook.
Is there a fix for CVE-2026-119993?
No fixed version is recorded yet. Check the vendor's advisory in the references below. If you run it, Junglewise drafts a mitigation that fits your setup and applies it once you approve, with senior security engineers behind it.
How is CVE-2026-119993 attacked?
It is attacked over the network.
Am I affected by CVE-2026-119993?
Check whether you run Microsoft Office Outlook. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

Technical details

A type confusion vulnerability in Microsoft Office Outlook allows an attacker to access resources using an incompatible data type, enabling information disclosure over the network. The vulnerability requires network access but does not require authentication. Exploitation results in disclosure of sensitive information.

Affected products

  • Microsoft Office Outlook

Timeline

  • 2026-11-10: disclosed

References

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