CVE-2020-15261 HIGH

CVE-2020-15261: Unquoted service path vulnerability on Veyon

Vendor Veyon
Product veyon
Weakness CWE-428
Published October 19, 2020
Last update August 4, 2024

CVSS base score

8.0/10
Attack vector Network
Attack complexity High
Privileges required High
User interaction None
Confidentiality High
Integrity High

CVSS vector

CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:C/C:H/I:H/A:H

What the vulnerability does

01Description

On Windows the Veyon Service before version 4.4.2 contains an unquoted service path vulnerability, allowing locally authenticated users with administrative privileges to run malicious executables with LocalSystem privileges. Since Veyon users (both students and teachers) usually don't have administrative privileges, this vulnerability is only dangerous in anyway unsafe setups. The problem has been fixed in version 4.4.2. As a workaround, the exploitation of the vulnerability can be prevented by revoking administrative privileges from all potentially untrustworthy users.

Key dates

02Disclosure timeline

October 19, 2020 CVE published
August 4, 2024 Record updated