Goal Reached Thanks to every supporter — we hit 100%!

Goal: 1000 CNY · Raised: 1000 CNY

100.0%
Buy Us a Coffee

CVE-2026-21260— Microsoft Outlook Spoofing Vulnerability

CVSS 7.5 · High EPSS 0.05% · P16
Get alerts for future matching vulnerabilitiesLog in to subscribe

I. Basic Information for CVE-2026-21260

Vulnerability Information
Have questions about the vulnerability? See if Shenlong's analysis helps!
View Shenlong Deep Dive ↗

Although we use advanced large model technology, its output may still contain inaccurate or outdated information.Shenlong tries to ensure data accuracy, but please verify and judge based on the actual situation.

Vulnerability Title
Microsoft Outlook Spoofing Vulnerability
Source: NVD (National Vulnerability Database)
Vulnerability Description
Exposure of sensitive information to an unauthorized actor in Microsoft Office Outlook allows an unauthorized attacker to perform spoofing over a network.
Source: NVD (National Vulnerability Database)
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
Source: NVD (National Vulnerability Database)
Vulnerability Type
信息暴露
Source: NVD (National Vulnerability Database)
Vulnerability Title
Microsoft Outlook 信息泄露漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Microsoft Outlook是美国微软（Microsoft）公司的一套电子邮件应用程序。 Microsoft Outlook存在信息泄露漏洞。攻击者利用该漏洞执行欺骗攻击。以下产品和版本受到影响：Microsoft SharePoint Enterprise Server 2016,Microsoft SharePoint Server 2019,Microsoft Office 2019 for 32-bit editions,Microsoft Office 2019 for 64-bit ed
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

VendorProductAffected VersionsCPESubscribe
MicrosoftMicrosoft 365 Apps for Enterprise 16.0.1 ~ https://aka.ms/OfficeSecurityReleases -
MicrosoftMicrosoft Office 2019 19.0.0 ~ https://aka.ms/OfficeSecurityReleases -
MicrosoftMicrosoft Office LTSC 2021 16.0.1 ~ https://aka.ms/OfficeSecurityReleases -
MicrosoftMicrosoft Office LTSC 2024 16.0.0 ~ https://aka.ms/OfficeSecurityReleases -
MicrosoftMicrosoft Outlook 2016 16.0.0.0 ~ 16.0.5539.1002 -
MicrosoftMicrosoft SharePoint Enterprise Server 2016 16.0.0 ~ 16.0.5539.1002 -
MicrosoftMicrosoft SharePoint Server 2019 16.0.0 ~ 16.0.10417.20097 -
MicrosoftMicrosoft SharePoint Server Subscription Edition 16.0.0 ~ 16.0.19127.20518 -

II. Public POCs for CVE-2026-21260

#POC DescriptionSource LinkShenlong Link
AI-Generated POCPremium

No public POC found.

Login to generate AI POC

III. Intelligence Information for CVE-2026-21260

请登录查看更多情报信息。

Same Patch Batch · Microsoft · 2026-02-10 · 54 CVEs total

CVE-2026-215319.8 CRITICALAzure SDK for Python Remote Code Execution Vulnerability
CVE-2026-215188.8 HIGHGitHub Copilot and Visual Studio Code Security Feature Bypass Vulnerability
CVE-2026-212558.8 HIGHWindows Hyper-V Security Feature Bypass Vulnerability
CVE-2026-212568.8 HIGHGitHub Copilot and Visual Studio Remote Code Execution Vulnerability
CVE-2026-215168.8 HIGHGitHub Copilot for Jetbrains Remote Code Execution Vulnerability
CVE-2026-215138.8 HIGHMSHTML Framework Security Feature Bypass Vulnerability
CVE-2026-215108.8 HIGHWindows Shell Security Feature Bypass Vulnerability
CVE-2026-215378.8 HIGHMicrosoft Defender for Endpoint Linux Extension Remote Code Execution Vulnerability
CVE-2026-212288.1 HIGHAzure Local Remote Code Execution Vulnerability
CVE-2026-212578.0 HIGHGitHub Copilot and Visual Studio Elevation of Privilege Vulnerability
CVE-2026-215238.0 HIGHGitHub Copilot and Visual Studio Code Remote Code Execution Vulnerability
CVE-2026-212298.0 HIGHPower BI Remote Code Execution Vulnerability
CVE-2026-212407.8 HIGHWindows HTTP.sys Elevation of Privilege Vulnerability
CVE-2026-215147.8 HIGHMicrosoft Word Security Feature Bypass Vulnerability
CVE-2026-208417.8 HIGHWindows Notepad App Remote Code Execution Vulnerability
CVE-2026-215337.8 HIGHWindows Remote Desktop Services Elevation of Privilege Vulnerability
CVE-2026-212367.8 HIGHWindows Ancillary Function Driver for WinSock Elevation of Privilege Vulnerability
CVE-2026-212467.8 HIGHWindows Graphics Component Elevation of Privilege Vulnerability
CVE-2026-212597.8 HIGHMicrosoft Excel Elevation of Privilege Vulnerability
CVE-2026-215197.8 HIGHDesktop Window Manager Elevation of Privilege Vulnerability

Showing top 20 of 54 CVEs. View all on vendor page → →

IV. Related Vulnerabilities

Same product: Microsoft 365 Apps for Enterprise
Same vendor: Microsoft
Same weakness: CWE-200

V. Comments for CVE-2026-21260

No comments yet

Leave a comment