CVE-2023-35311

Published: Jul 11, 2023

Modified: Oct 21, 2025

PUBLISHED

CVSS v3.1

8.8

HIGH

Microsoft Outlook Security Feature Bypass Vulnerability

Vendor	Product	Versions
Microsoft	Microsoft 365 Apps for Enterprise	affected `16.0.1 - < https://aka.ms/OfficeSecurityReleases`
Microsoft	Microsoft Office LTSC 2021	affected `16.0.1 - < https://aka.ms/OfficeSecurityReleases`
Microsoft	Microsoft Office 2019	affected `19.0.0 - < https://aka.ms/OfficeSecurityReleases`
Microsoft	Microsoft Outlook 2016	affected `16.0.0.0 - < 16.0.5404.1000`
Microsoft	Microsoft Outlook 2013	affected `14.0.0 - < 15.0.5571.1000`
Microsoft	Microsoft Outlook 2013 Service Pack 1	affected `15.0.0.0 - < 15.0.5571.1000`

CVSS v3.1 Vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H/E:F/RL:O/RC:C

Attack Vector

Network

Attack Complexity

Low

Privileges Required

None

User Interaction

Required

Scope

Unchanged

Confidentiality

High

Integrity

High

Availability

High

vendor-advisory

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