365_apps: Heap-based Buffer Overflow (CVE-2026-68796)

Weakness-Klassen (CWE)

• CWE-122Variant

  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.mitre.org →

Re-Analyse & Statuswechsel

Chronologie der NVD-Audit-Events für diese CVE — Reanalyses, CVSS-Updates, CPE-Diffs.

1. New CVE Received2026-08-11 17:19 UTC· secure@microsoft.com
   • Affected: Microsoft 365 Apps for Enterprise, Microsoft Excel 2016, Microsoft Office 2019 (+5)
   • Description: Heap-based buffer overflow in Microsoft Office Excel allows an unauthorized attacker to execute code locally.
   • CVSS V3.1: AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
   • CWE: CWE-122

Betroffene Produkte

Aus der Hersteller-/CERT-Meldung extrahierte Produkte und Versionsbereiche. Ein Version-Range wie „<4.14.6“ impliziert die Update-Empfehlung „auf 4.14.6 oder höher aktualisieren“.

• microsoft

  365_apps

• microsoft

  excel

• microsoft

  microsoft_365

• microsoft

  office_2019

• microsoft

  office_2021

• microsoft

  office_2024

Quellen & Referenzen

• https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-68796
  vendor-advisorypatch

Verknüpfte Empfehlungen

• ncsc-nl2026-08-27 10:23 UTC
  NCSC-2026-0286 [1.01] [H/H] Kwetsbaarheden verholpen in Microsoft Office