Information disclosure in Microsoft products - CVE-2021-28456
Published: April 13, 2021
Vulnerability identifier: #VU52112
CSH Severity: Medium
CVSS v4.0: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N/E:U/U:Green
CVE-ID: CVE-2021-28456
CWE-ID: CWE-200
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vendor: Microsoft
Affected software:
Microsoft Office
Microsoft Excel
Office Online Server
Microsoft Office Web Apps Server
Microsoft Office
Microsoft Excel
Office Online Server
Microsoft Office Web Apps Server
Detailed vulnerability description
The vulnerability allows a remote attacker to gain access to potentially sensitive information.
The vulnerability exists due to excessive data output by the application in Microsoft Excel. A remote attacker can trick a victim to open a specially crafted file or visit a malicious website and gain unauthorized access to sensitive information on the system.
How to mitigate CVE-2021-28456
Install updates from vendor's website.