7.8

CVE-2026-20957

Microsoft Excel Remote Code Execution Vulnerability

Integer underflow (wrap or wraparound) in Microsoft Office Excel allows an unauthorized attacker to execute code locally.
Daten sind bereitgestellt durch National Vulnerability Database (NVD)
Microsoft365 Apps Version- SwEditionenterprise HwPlatformx64
Microsoft365 Apps Version- SwEditionenterprise HwPlatformx86
MicrosoftExcel Version2016
MicrosoftOffice Version2019
MicrosoftOffice Long Term Servicing Channel Version2021 SwPlatform- HwPlatformx64
MicrosoftOffice Long Term Servicing Channel Version2021 SwPlatform- HwPlatformx86
MicrosoftOffice Long Term Servicing Channel Version2021 SwPlatformmacos
MicrosoftOffice Long Term Servicing Channel Version2024 SwPlatform- HwPlatformx64
MicrosoftOffice Long Term Servicing Channel Version2024 SwPlatform- HwPlatformx86
MicrosoftOffice Long Term Servicing Channel Version2024 SwPlatformmacos
MicrosoftOffice Online Server Version < 16.0.10417.20083
VulnDex Vulnerability Enrichment
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Zu dieser CVE wurde keine Warnung gefunden.
EPSS Metriken
Typ Quelle Score Percentile
EPSS FIRST.org 0.16% 0.366
CVSS Metriken
Quelle Base Score Exploit Score Impact Score Vector String
secure@microsoft.com 7.8 1.8 5.9
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
CWE-122 Heap-based Buffer Overflow

A heap overflow condition is a buffer overflow, where the buffer that can be overwritten is allocated in the heap portion of memory, generally meaning that the buffer was allocated using a routine such as malloc().

CWE-191 Integer Underflow (Wrap or Wraparound)

The product subtracts one value from another, such that the result is less than the minimum allowable integer value, which produces a value that is not equal to the correct result.