What’s Vulnerable › Vulnerabilities

CVE-2020-25744

• Severity: high (CVSS 8.1 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 1.4% probability of exploitation in the next 30 days
• Public exploit or detection template: yes
• Published: 2020-09-18 · updated 2026-06-17
• Weakness: CWE-59

Description

SaferVPN before 5.0.3.3 on Windows could allow low-privileged users to create or overwrite arbitrary files, which could cause a denial of service (DoS) condition, because a symlink from %LOCALAPPDATA%\SaferVPN\Log is followed.

Affected products

• Safervpn: before 5.0.3.3 — fixed in 5.0.3.3

How to fix

Upgrade to a fixed version: Safervpn 5.0.3.3. Check the vendor advisory for mitigations.

References

• https://medium.com/%40thebinary0x1/safervpn-for-windows-arbitrary-file-overwrite-dos-bdc88fdb5ead
• https://www.youtube.com/watch?v=0QdRJdA_aos
• https://medium.com/%40thebinary0x1/safervpn-for-windows-arbitrary-file-overwrite-dos-bdc88fdb5ead
• https://www.youtube.com/watch?v=0QdRJdA_aos

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