TI-2020-09398 Aliases CVE-2020-11707 GHSA-m375-vhrx-7rhv

An issue was discovered in ProVide (formerly zFTPServer) through 13.1.

MEDIUM 40CWE-863Published 2020-04-12 · Updated 2024-08-04

Key facts

Attack vector: Network
Privileges required: Low
User interaction: None
Attack complexity: Low
Impact type: Security bypass
Confidentiality · integrity · availability: High · High · High
Fix status: No fix listed

Attack profile from CVSS 3.1 · NVD. Fix status from CNA. Impact type from CWE-863.

Summary

An issue was discovered in ProVide (formerly zFTPServer) through 13.1. It doesn't enforce permission over Windows Symlinks or Junctions. As a result, a low-privileged user (non-admin) can craft a Junction Link in a directory he has full control of, breaking out of the sandbox.

Why it matters now

EPSS 0.01003 63rd percentileScored 2026-11-07

Public exploit Yes 1 exploit referenceTagged by NVD

Fix No fix listed No fixed version in the sources yet

SSVC decision points

Not available: CISA has not published SSVC decision points for this record.

Affected products

Vendor	Product	Affected versions	Fixed in	Status	Source
—	—	all versions	—	No fix listed	CNA

— Vendor— Affected all versions Fixed in — No fix listed CNA

CPE configurations NVD · 1

CPE	Versions	Role	Vendor
cpe:2.3:a:provideserver:provide_ftp_server::::::windows::*	up to 13.1	Vulnerable	Provideserver

cpe:2.3:a:provideserver:provide_ftp_server:*:*:*:*:*:windows:*:* Versions up to 13.1 Vulnerable ·Provideserver

Remediation

No fixed version listed by the sources yet.

Timeline

2026-10-02 Threatist record created from CVE-2020-11707
2026-10-03 Alias added: GHSA-m375-vhrx-7rhv

References

Exploit 1

https://github.com/belong2yourself/vulnerabilities/tree/master/ProVide/Sandbox%20Escape%20via%20Symlink%20or%20Junction

Advisory 1

https://www.provideserver.com/security/

TI-2020-09399 An issue was discovered in ProVide (formerly zFTPServer) through 13.1. CVSS 3.1CRITICAL 9.8
TI-2020-09396 An issue was discovered in ProVide (formerly zFTPServer) through 13.1. CVSS 3.1CRITICAL 9.8
TI-2020-09397 An issue was discovered in ProVide (formerly zFTPServer) through 13.1. CVSS 3.1HIGH 8.8
TI-2020-09392 An issue was discovered in ProVide (formerly zFTPServer) through 13.1. CVSS 3.1HIGH 8.8
TI-2020-09394 An issue was discovered in ProVide (formerly zFTPServer) through 13.1. CVSS 3.1HIGH 7.5
TI-2020-09395 An issue was discovered in ProVide (formerly zFTPServer) through 13.1. CVSS 3.1MEDIUM 6.1

See all 7 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences