CVE-2026-21260

CVSS Score & Metrics

Base Score

7.5 / 10

Vector String

                                        CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N                                    

Vulnerability Description

Exposure of sensitive information to an unauthorized actor in Microsoft Office Outlook allows an unauthorized attacker to perform spoofing over a network.

Vulnerability Details

Published Date

February 10, 2026

Last Modified

February 11, 2026

CWE ID

CWE-200

Source

NVD

Vendor

microsoft

Product

365_apps

External References

https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-21260

CVSS Score & Metrics

Vulnerability Description

Vulnerability Details

External References

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