CVE-2025-21186 — Heap-based Buffer Overflow in Microsoft 365 Apps FOR Enterprise

CWE-122 — Heap-based Buffer Overflow4 documents4 sources
Severity
7.8HIGHNVD
EPSS
1.0%
top 22.85%
CISA KEV
Not in KEV
Exploit
No known exploits
Affected products
8
Microsoft 365 Apps FOR EnterpriseMicrosoft Access 2016Microsoft Office 2019+5 more
Timeline
PublishedJan 14

Description

Microsoft Access Remote Code Execution Vulnerability

CVSS vector

CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:HExploitability: 1.8 | Impact: 5.9

Affected Packages8 packages

▶CVEListV5microsoft/microsoft_access_201616.0.0 — 16.0.5483.1001
▶CVEListV5microsoft/microsoft_office_201919.0.0 — https://aka.ms/OfficeSecurityReleases
▶CVEListV5microsoft/microsoft_office_ltsc_202116.0.1 — https://aka.ms/OfficeSecurityReleases
▶CVEListV5microsoft/microsoft_office_ltsc_202416.0.0 — https://aka.ms/OfficeSecurityReleases

Patches

Patch: msrc.microsoft.com ↗

🔴Vulnerability Details

2
CVEList
Microsoft Access Remote Code Execution Vulnerability↗2025-01-14
▶
GHSA
GHSA-vr4q-g244-9x55: Microsoft Access Remote Code Execution Vulnerability↗2025-01-14
▶

📋Vendor Advisories

1
Microsoft
Microsoft Access Remote Code Execution Vulnerability↗2025-01-14
▶
CVE-2025-21186 — Heap-based Buffer Overflow | cvebase