CVE-2026-69477CWE-122

CVE-2026-69477

High · published September 8, 2026

CVSS v3.1
7.3
EPSS
0%
Percentile
35.9
In the wild
Unconfirmed
What it is

Heap-based buffer overflow in Microsoft Office Access allows an authorized attacker to execute code locally.

The record
Technical detail
CVSS v3.1
7.3 · HIGH
Vector
CVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:H
CVSS v4.0
Not supplied
EPSS
0.00427 · 35.9th percentile
Weakness
CWE-122 · Heap-based Buffer Overflow
Published
2026-09-08T22:19Z
Affected products (10)
ProductVersionsFixed in
microsoft/365_appsall versions—
microsoft/365_appsall versions—
microsoft/accessall versions—
microsoft/accessall versions—
microsoft/office_2019all versions—
microsoft/office_2019all versions—
microsoft/office_2021all versions—
microsoft/office_2021all versions—
microsoft/office_2024all versions—
microsoft/office_2024all versions—
References (1)
https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-69477 · [email protected]
EPSS history
Timeline
  • 10 SEP 03:17Z
    EPSS moved — → 0%
    epss
  • 08 SEP 17:17Z
    Microsoft Office Access Remote Code Execution Vulnerability
    cvelistv5