CVE-2026-64920
365_apps: Heap-based Buffer Overflow (CVE-2026-64920)
highEPSS 0.3 %
Beschreibung
Metriken
Severity
high
82.47
kein öffentlicher PoC bekannt
7.8
Veröffentlicht
2026-08-11 17:06 UTC
CWE-122
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.
- Initial Analysis2026-08-14 15:14 UTC· nvd@nist.gov
- CPE Configuration: OR *cpe:2.3:a:microsoft:365_apps:-:*:*:*:enterprise:*:x64:* *cpe:2.3:a:microsoft:365_apps:-:*:*:*:enterprise:*:x86:* *cpe:2.3:a:microsoft:office_2019:-:*:*:*:*:*:x86:* *cpe:2.3:a:microsoft:office_2019:-:*:*:*:*:*:x64:* *cpe:2.3:a:microsoft:office_2021:-:*:*:*:ltsc:-:x64:* *cpe:2.3:a:microsoft:office_2021:-:*:*:*:ltsc:-:x86:* *cpe:2.3:a:microsoft:office_2024:-:*:*:*:ltsc:-:x64:* *cpe:2.3:a:microsoft:office_2024:-:*:*:*:ltsc:-:x86:* *cpe:2.3:a:microsoft:access:2016:*:*:*:*:*:x64:* *cpe:2.3:a:microsoft:access:2016:*:*:*:*:*:x86:*
- Reference Type: Microsoft Corporation: https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-64920 Types: Vendor Advisory
- New CVE Received2026-08-11 17:18 UTC· secure@microsoft.com
- Affected: Microsoft 365 Apps for Enterprise, Microsoft Access 2016, Microsoft Access 2016 (32-bit edition) (+3)
- Description: Heap-based buffer overflow in Microsoft Office Access 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
access
microsoft
office_2019
microsoft
office_2021
microsoft
office_2024
Quellen & Referenzen
Verknüpfte Empfehlungen
IDCVE-2026-64920