Input validation error in Microsoft Office and Microsoft Excel - CVE-2021-42292
Published: November 9, 2021
Vulnerability identifier: #VU58058
CSH Severity: Critical
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-2021-42292
CWE-ID: CWE-20
Exploitation vector: Remote access
Exploit availability:
The vulnerability is being exploited in the wild
Vulnerability details
The vulnerability allows a remote attacker to compromise the affected system.
The vulnerability exists due to improper input validation when processing Excel files. A remote attacker can create a specially crafted Excel file, trick the victim into opening it and execute arbitrary code on the system.
Note, the vulnerability is being exploited in the wild.
Affected software
Microsoft Office
Microsoft Excel
Microsoft Excel
How to mitigate CVE-2021-42292
Install updates from vendor's website.