Information disclosure in Microsoft Visual Basic for Applications
| 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 365 Apps for Enterprise Client/Desktop applications / Office applications Microsoft Office LTSC 2021 Other software / Other software solutions |
| Vendor | Microsoft |
Security Bulletin
This security bulletin contains one low risk vulnerability.
1) Information disclosure
EUVDB-ID: #VU58949
Risk: Low
CVSSv3.1: 4.8 [CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N/E:U/RL:O/RC:C]
CVE-ID: CVE-2021-42295
CWE-ID:
CWE-200 - Information exposure
Exploit availability: No
DescriptionThe 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.
MitigationInstall updates from vendor's website.
Vulnerable software versionsMicrosoft Office: 2013 - 2019
Microsoft Office LTSC 2021: 32 bit editions - 64 bit editions
Microsoft 365 Apps for Enterprise: 32-bit Systems - 64-bit Systems
External linkshttp://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2021-42295
Q & A
Can this vulnerability be exploited remotely?
No. This vulnerability can be exploited locally. The attacker should have authentication credentials and successfully authenticate on the system.
How the attacker can exploit this vulnerability?
The attacker would have to trick the victim to visit a specially crafted website or open a file.
The attacker would have to login to the system and perform certain actions in order to exploit this vulnerability.
Is there known malware, which exploits this vulnerability?
No. We are not aware of malware exploiting this vulnerability.
