CVE-2026-62882: Microsoft Outlook Spoofing Vulnerability

Published Aug 11, 2026
·
Updated

Insufficiently protected credentials in Microsoft Office Outlook allows an unauthorized attacker to perform spoofing over a network.

Other sources

Microsoft Outlook Spoofing Vulnerability

— Microsoft

Affected Software

20 affected componentsFixes available
Microsoft Outlook 2016<16.0.5565.1000
16.0.5565.1000
Microsoft Outlook 2016<16.0.5565.1000
16.0.5565.1000
Microsoft Office LTSC 2024 for 64-bit editions<https://aka.ms/OfficeSecurityReleases
https://aka.ms/OfficeSecurityReleases
Microsoft Office LTSC 2021 for 32-bit editions<https://aka.ms/OfficeSecurityReleases
https://aka.ms/OfficeSecurityReleases
Microsoft 365 Apps for Enterprise<https://aka.ms/OfficeSecurityReleases
https://aka.ms/OfficeSecurityReleases
Microsoft Office 2019 for 32-bit editions<https://aka.ms/OfficeSecurityReleases
https://aka.ms/OfficeSecurityReleases
Microsoft Office LTSC 2024 for 32-bit editions<https://aka.ms/OfficeSecurityReleases
https://aka.ms/OfficeSecurityReleases
Microsoft 365 Apps for Enterprise<https://aka.ms/OfficeSecurityReleases
https://aka.ms/OfficeSecurityReleases
Microsoft Office 2019 for 64-bit editions<https://aka.ms/OfficeSecurityReleases
https://aka.ms/OfficeSecurityReleases
Microsoft Office LTSC 2021 for 64-bit editions<https://aka.ms/OfficeSecurityReleases
https://aka.ms/OfficeSecurityReleases
Microsoft 365 Apps
Microsoft 365 Apps
Microsoft Office 2019
Microsoft Office 2019
Microsoft Office 2021
Microsoft Office 2021
Microsoft Office 2024
Microsoft Office 2024
Microsoft Outlook=2016
Microsoft Outlook=2016

Remediation

Patch Available

https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-62882

Event History

Aug 11, 2026
CVE Published
via Microsoft·02:00 PM
Data Sourced
via Microsoft·02:00 PM
DescriptionSeverityWeakness
Data Sourced
via Microsoft·02:00 PM
Affected Software
Updated
via Microsoft·02:00 PM
Description
CVE Published
via MITRE·05:06 PM
Data Sourced
via MITRE·05:06 PM
DescriptionSeverity
Data Sourced
via NVD·05:18 PM
RemedyDescriptionSeverityWeaknessAffected Software
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Frequently Asked Questions

1

What is the severity of CVE-2026-62882?

The severity of CVE-2026-62882 is medium with a score of 4.3.

2

How do I fix CVE-2026-62882?

To fix CVE-2026-62882, apply the available patch to the affected Microsoft Outlook software.

3

What software is affected by CVE-2026-62882?

CVE-2026-62882 affects Microsoft Outlook 2016, Microsoft 365 Apps for Enterprise, Microsoft Office 2019, Microsoft Office 2021, Microsoft Office 2024, and Microsoft Office LTSC 2024.

4

What type of vulnerability is CVE-2026-62882?

CVE-2026-62882 is a spoofing vulnerability resulting from insufficiently protected credentials in Microsoft Outlook.

5

What can an attacker achieve with CVE-2026-62882?

An attacker can perform spoofing over a network by exploiting CVE-2026-62882.

Company

Resources

Contact

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