Main Vulnerability Database Vulnerabilities #VU50463

Input validation error in Microsoft products - CVE-2021-24070

Published: February 9, 2021

Vulnerability identifier: #VU50463

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-2021-24070

CWE-ID: CWE-20

Exploitation vector: Remote access

Exploit availability: No public exploit available

Vulnerability details

The vulnerability allows a remote attacker to execute arbitrary code on the system.

The vulnerability exists due to insufficient validation of user-supplied input in Microsoft Excel. A remote attacker can host a website, trick a victim to open the specially crafted file and execute arbitrary code on the target system.

Affected software

Microsoft Excel
Microsoft Office
Microsoft Office Web Apps Server
Office Online Server

How to mitigate CVE-2021-24070

Install updates from vendor's website.

External References

https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2021-24070

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