CVE-2020-8635
Wing FTP Server v6.2.3 for Linux, macOS, and Solaris sets insecure permissions on installation...
Wing FTP Server v6.2.3 for Linux, macOS, and Solaris sets insecure permissions on installation directories and configuration files. This allows local users to arbitrarily create FTP users with full privileges, and escalate privileges within the operating system by modifying system files.
Attack profile
How easy it is to exploit
- Attack vector
- Local
- Complexity
- Low
- Privileges needed
- Low
- User interaction
- None
What an attacker can affect
- Confidentiality
- High
- Integrity
- High
- Availability
- High
Exploit likelihood
What each source reports
NVD Score used
Wing FTP Server v6.2.3 for Linux, macOS, and Solaris sets insecure permissions on installation directories and configuration files. This allows local users to arbitrarily create FTP users with full privileges, and escalate privileges within the operating system by modifying system files.
- Record
CVE-2020-8635- CVSS 3.1
- 7.8 High
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H - CVSS 2.0
- 7.2 High
AV:L/AC:L/Au:N/C:C/I:C/A:C - Weakness
- CWE-732
- Updated
- 2026-11-02
CVE List No score
Wing FTP Server v6.2.3 for Linux, macOS, and Solaris sets insecure permissions on installation directories and configuration files. This allows local users to arbitrarily create FTP users with full privileges, and escalate privileges within the operating system by modifying system files.
- Record
CVE-2020-8635- Updated
- 2026-11-02
EUVDEUVD-2020-29483 No score
Wing FTP Server v6.2.3 for Linux, macOS, and Solaris sets insecure permissions on installation directories and configuration files. This allows local users to arbitrarily create FTP users with full privileges, and escalate privileges within the operating system by modifying system files.
- Record
EUVD-2020-29483- Updated
- 2026-11-03
GitHub AdvisoriesGHSA-m4qv-p2xf-7g7f No score
Wing FTP Server v6.2.3 for Linux, macOS, and Solaris sets insecure permissions on installation...
Wing FTP Server v6.2.3 for Linux, macOS, and Solaris sets insecure permissions on installation directories and configuration files. This allows local users to arbitrarily create FTP users with full privileges, and escalate privileges within the operating system by modifying system files.
- Record
GHSA-m4qv-p2xf-7g7f- Weakness
- CWE-269
- Updated
- 2026-11-02
Affected products
Public exploits
Links only. Every CVE stores no exploit code.
| Source | Link | Date |
|---|---|---|
| PoC in GitHub | Al1ex/CVE-2020-8635 | 2020-12-25 |
History
| Recorded | Changed | Sources |
|---|---|---|
| aliases | EUVD | |
| first indexed | CVE List, GitHub Advisories, NVD, PoC in GitHub |
Dates are when Every CVE recorded each change. Upstream dates may differ.
In short
CVE-2020-8635 is a high vulnerability (CVSS 7.8) in Wftpserver Wing Ftp Server, published March 6, 2020. Public exploit code exists. EPSS puts the chance of exploitation in the next 30 days at 0.81%, the 56th percentile. No source names a fixed version.