#VU57270 Improper Validation of Array Index in Microsoft Office - CVE-2021-40480
Published: October 12, 2021 / Updated: October 14, 2021
Vulnerability identifier: #VU57270
Vulnerability risk: High
CVSSv4.0: 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/E:U/U:Amber
CVE-ID: CVE-2021-40480
CWE-ID: CWE-129
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerable software:
Microsoft Office
Microsoft Office
Software vendor:
Microsoft
Microsoft
Description
The vulnerability allows a remote attacker to compromise the affected system.
The vulnerability exists due to improper validation of user-supplied data when parsing EMF files in Microsoft Office Visio. A remote attacker can trick the victim to open a specially crafted file, trigger memory corruption and execute arbitrary code on the system.
Remediation
Install updates from vendor's website.