Spoofing attack in Microsoft products - CVE-2021-43255
Published: December 14, 2021
Vulnerability identifier: #VU58926
CSH Severity: Low
CVSS v4: 6.7 [CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:A/VC:N/VI:H/VA:N/SC:N/SI:N/SA:N]
CVE-ID: CVE-2021-43255
CWE-ID: CWE-451
Exploitation vector: Local access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a local attacker to perform spoofing attack.
The vulnerability exists due to incorrect processing of user-supplied data in Microsoft Office Trust Center. A local attacker can spoof page content.
Affected software
Microsoft Office LTSC
Microsoft 365 Apps for Enterprise
Microsoft Office
Microsoft 365 Apps for Enterprise
Microsoft Office
How to mitigate CVE-2021-43255
Install updates from vendor's website.