Vulnerability identifier: #VU48846
Vulnerability risk: High
CVSSv3.1: 7.7 [CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C]
CVE-ID:
CWE-ID:
CWE-119
Exploitation vector: Network
Exploit availability: No
Vulnerable software:
Microsoft Office
Client/Desktop applications /
Office applications
Microsoft Excel
Client/Desktop applications /
Office applications
Microsoft Office Web Apps
Client/Desktop applications /
Office applications
Office Online Server
Server applications /
Other server solutions
Vendor: Microsoft
Description
The vulnerability allows a remote attacker to execute arbitrary code on the target system.
The vulnerability exists due to a boundary error when processing Microsoft Excel files. A remote attacker can create a specially crafted Excel document, trick the victim into opening it, trigger memory corruption and execute arbitrary code on the target system.
Successful exploitation of this vulnerability may result in complete compromise of vulnerable system.
Mitigation
Install updates from vendor's website.
Vulnerable software versions
Microsoft Office: 2019 - 2019 for Mac, 2010 Service Pack 2
Office Online Server : 2016
Microsoft Excel:
Microsoft Office Web Apps: 2013 Service Pack 1
External links
http://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2020-17128
http://www.zerodayinitiative.com/advisories/ZDI-20-1425/
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?
No. We are not aware of malware exploiting this vulnerability.