8.8

CVE-2026-78518

Medienbericht

Microsoft Office Excel Remote Code Execution Vulnerability

Out-of-bounds read in Microsoft Office Excel allows an unauthorized attacker to execute code over a network.
Daten sind bereitgestellt durch National Vulnerability Database (NVD)
Microsoft ≫ 365 Apps Version - SwEdition enterprise HwPlatform x64
Microsoft ≫ 365 Apps Version - SwEdition enterprise HwPlatform x86
Microsoft ≫ Excel Version 2016 HwPlatform x64
Microsoft ≫ Excel Version 2016 HwPlatform x86
Microsoft ≫ Microsoft 365 Version - SwPlatform macos
Microsoft ≫ Office 2016 Version - SwEdition - HwPlatform x64
Microsoft ≫ Office 2016 Version - SwEdition - HwPlatform x86
Microsoft ≫ Office 2019 Version - HwPlatform x64
Microsoft ≫ Office 2019 Version - HwPlatform x86
Microsoft ≫ Office 2021 Version - SwEdition ltsc SwPlatform - HwPlatform x64
Microsoft ≫ Office 2021 Version - SwEdition ltsc SwPlatform - HwPlatform x86
Microsoft ≫ Office 2021 Version - SwEdition ltsc SwPlatform macos HwPlatform -
Microsoft ≫ Office 2024 Version - SwEdition ltsc SwPlatform - HwPlatform x64
Microsoft ≫ Office 2024 Version - SwEdition ltsc SwPlatform - HwPlatform x86
Microsoft ≫ Office 2024 Version - SwEdition ltsc SwPlatform macos HwPlatform -
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Zu dieser CVE wurde keine Warnung gefunden.
EPSS Metriken
Typ Quelle Score Percentile
EPSS FIRST.org 0.86% 0.564
CVSS Metriken
Quelle Base Score Exploit Score Impact Score Vector String
Microsoft 8.8 2.8 5.9
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
CWE-125 Out-of-bounds Read

The product reads data past the end, or before the beginning, of the intended buffer.

CWE-20 Improper Input Validation

The product receives input or data, but it does not validate or incorrectly validates that the input has the properties that are required to process the data safely and correctly.

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VulnDex Intel
Media Report
08.09.2026 20:38
https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-78518
Patch
Vendor Advisory