Information disclosure in Microsoft Visual Basic for Applications



Published: 2021-12-14
Risk Low
Patch available YES
Number of vulnerabilities 1
CVE-ID CVE-2021-42295
CWE-ID CWE-200
Exploitation vector Local
Public exploit N/A
Vulnerable software
Subscribe
Microsoft Office
Client/Desktop applications / Office applications

Microsoft Office LTSC 2021
Other software / Other software solutions

Microsoft 365 Apps for Enterprise
Client/Desktop applications / Other client software

Vendor Microsoft

Security Bulletin

This security bulletin contains one low risk vulnerability.

1) Information disclosure

EUVDB-ID: #VU58949

Risk: Low

CVSSv3.1:

CVE-ID: CVE-2021-42295

CWE-ID: CWE-200 - Information Exposure

Exploit availability: No

Description

The vulnerability allows a local attacker to gain access to potentially sensitive information.

The vulnerability exists due to excessive data output by the application in Visual Basic for Applications. A local attacker can gain unauthorized access to sensitive information on the system.

Mitigation

Install updates from vendor's website.

Vulnerable software versions

Microsoft Office: 2013 - 2019

Microsoft Office LTSC 2021: 32 bit editions - 64 bit editions

Microsoft 365 Apps for Enterprise: 32-bit Systems - 64-bit Systems


CPE2.3 External links

http://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2021-42295

Q & A

Can this vulnerability be exploited remotely?

How the attacker can exploit this vulnerability?

Is there known malware, which exploits this vulnerability?



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