Vulnerability identifier: #VU58058
Vulnerability risk: Critical
CVSSv4.0: 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/E:A/U:Red]
CVE-ID:
CWE-ID:
CWE-20
Exploitation vector: Network
Exploit availability: No
Vulnerable software:
Microsoft Office
Client/Desktop applications /
Office applications
Microsoft Excel
Client/Desktop applications /
Office applications
Vendor: Microsoft
Description
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.
Mitigation
Install updates from vendor's website.
Vulnerable software versions
Microsoft Office: 2013 RT - 2013, 2016, 2019 for Mac - 2019
Microsoft Excel: 2013 RT Service Pack 1, 2013, 2016
External links
https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2021-42292
Can this vulnerability be exploited remotely?
Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.
Is there known malware, which exploits this vulnerability?
Yes. This vulnerability is being exploited in the wild.