Heap-based buffer overflow in Microsoft products - CVE-2025-21186
Published: January 14, 2025
Vulnerability identifier: #VU102695
CSH Severity: High
CVSS v4: 8.4 [CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:A/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N]
CVE-ID: CVE-2025-21186
CWE-ID: CWE-122
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a remote attacker to execute arbitrary code on the target system.
The vulnerability exists due to a boundary error in Microsoft Access. A remote attacker can trick a victim to open a specially crafted file, trigger a heap-based buffer overflow and execute arbitrary code on the target system.
Successful exploitation of this vulnerability may result in complete compromise of vulnerable system.
Affected software
Microsoft 365 Apps for Enterprise
Microsoft Access
Microsoft Office
Microsoft Office LTSC
Microsoft Access
Microsoft Office
Microsoft Office LTSC
How to mitigate CVE-2025-21186
Install updates from vendor's website.