Information disclosure in Microsoft Windows Overlay Filter



Published: 2021-04-13
Risk Low
Patch available YES
Number of vulnerabilities 1
CVE ID CVE-2021-26417
CWE ID CWE-200
Exploitation vector Local
Public exploit N/A
Vulnerable software
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Windows
Operating systems & Components / Operating system

Windows Server
Operating systems & Components / Operating system

Vendor Microsoft

Security Advisory

This security advisory describes one low risk vulnerability.

1) Information disclosure

Risk: Low

CVSSv3.1: 4.8 [CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N/E:U/RL:O/RC:C] [PCI]

CVE-ID: CVE-2021-26417

CWE-ID: CWE-200 - Information Exposure

Exploit availability: No

Description

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

The vulnerability exists due to excessive data output by the application in Windows Overlay Filter. A local user can gain unauthorized access to sensitive information on the system.

Mitigation

Install updates from vendor's website.

Vulnerable software versions

Windows: 10 20H2, 10 1809, 10 1909, 10 2004

Windows Server: 2019, 2019 20H2, 2019 1909, 2019 2004

CPE External links

https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2021-26417

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.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.



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