CVE-2020-15261
Unquoted service path vulnerability on Veyon
- Published
- Oct 19, 2020
- Updated
- Aug 4, 2024
- Assigning CNA
- GitHub_M
- Evidence observed
- Jun 1, 2021
Primary CVSS
nvd · CVSS 3.1
CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:C/C:H/I:H/A:HModerate · next 30 days
- Percentile
- 95.8%
- Model date
- Sep 21, 2026
EPSS is a statistical estimate, not a certainty or a measure of impact. Combine it with CVSS, KEV status, exposure and your environment.
Summary
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.
Sources
1Víctor García · windows · Jun 1, 2021
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