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CVE-2026-26112— Microsoft Excel Remote Code Execution Vulnerability

CVSS 7.8 · High EPSS 0.46% · P37

Affected Version Matrix 8

VendorProductVersion RangeStatus
MicrosoftMicrosoft 365 Apps for Enterprise16.0.1< https://aka.ms/OfficeSecurityReleasesaffected
MicrosoftMicrosoft Excel 201616.0.0.0< 16.0.5543.1000affected
MicrosoftMicrosoft Office 201919.0.0< https://aka.ms/OfficeSecurityReleasesaffected
MicrosoftMicrosoft Office LTSC 202116.0.1< https://aka.ms/OfficeSecurityReleasesaffected
MicrosoftMicrosoft Office LTSC 202416.0.0< https://aka.ms/OfficeSecurityReleasesaffected
MicrosoftMicrosoft Office LTSC for Mac 202116.0.1< 16.107.26030819affected
MicrosoftMicrosoft Office LTSC for Mac 202416.0.0< 16.107.26030819affected
MicrosoftOffice Online Server16.0.0.0< 16.0.10417.20102affected
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I. Basic Information for CVE-2026-26112

Vulnerability Information
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Vulnerability Title
Microsoft Excel Remote Code Execution Vulnerability
Source: NVD (National Vulnerability Database)
Vulnerability Description
Untrusted pointer dereference in Microsoft Office Excel allows an unauthorized attacker to execute code locally.
Source: NVD (National Vulnerability Database)
CVSS Information
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Source: NVD (National Vulnerability Database)
Vulnerability Type
非可信指针解引用
Source: NVD (National Vulnerability Database)
Vulnerability Title
Microsoft Excel 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Microsoft Excel是美国微软（Microsoft）公司的一款Office套件中的电子表格处理软件。 Microsoft Excel存在安全漏洞。攻击者利用该漏洞可以远程执行代码。以下产品和版本受到影响：Microsoft Office LTSC for Mac 2024,Microsoft Excel 2016 (32-bit edition),Microsoft Excel 2016 (64-bit edition),Office Online Server,Microsoft Office
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 Excel 2016 16.0.0.0 ~ 16.0.5543.1000 -
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 Office LTSC for Mac 2021 16.0.1 ~ 16.107.26030819 -
MicrosoftMicrosoft Office LTSC for Mac 2024 16.0.0 ~ 16.107.26030819 -
MicrosoftOffice Online Server 16.0.0.0 ~ 16.0.10417.20102 -

II. Public POCs for CVE-2026-26112

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III. Intelligence Information for CVE-2026-26112

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Vendor Advisories for CVE-2026-26112 (1)

Same Patch Batch · Microsoft · 2026-03-10 · 78 CVEs total

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CVE-2026-261108.4 HIGHMicrosoft Office Remote Code Execution Vulnerability
CVE-2026-261098.4 HIGHMicrosoft Excel Remote Code Execution Vulnerability
CVE-2026-261138.4 HIGHMicrosoft Office Remote Code Execution Vulnerability
CVE-2026-261488.1 HIGHMicrosoft Azure AD SSH Login extension for Linux Elevation of Privilege Vulnerability
CVE-2026-261058.1 HIGHMicrosoft SharePoint Server Spoofing Vulnerability
CVE-2026-251738.0 HIGHWindows Routing and Remote Access Service (RRAS) Remote Code Execution Vulnerability
CVE-2026-251728.0 HIGHWindows Routing and Remote Access Service (RRAS) Remote Code Execution Vulnerability
CVE-2026-261118.0 HIGHWindows Routing and Remote Access Service (RRAS) Remote Code Execution Vulnerability

Showing top 20 of 78 CVEs. View all on vendor page &rarr; →

IV. Related Vulnerabilities

Same product: Microsoft 365 Apps for Enterprise
Same vendor: Microsoft
Same weakness: CWE-822

V. Comments for CVE-2026-26112

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