CVE-2020-25744: SaferVPN before 5.0.3.3 on Windows could allow low-privileged users to create or overwrite arbitrary files, wh

Q: How do I fix CVE-2020-25744?

safervpn: upgrade to 5.0.3.3. Exact commands for each OS are on this page.

Q: Is CVE-2020-25744 being exploited?

CVE-2020-25744 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

Q: What does CVE-2020-25744 affect?

CVE-2020-25744 affects safervpn. Severity is high (CVSS 8.1). 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.

Q: How urgent is CVE-2020-25744?

Priority 52/100. High severity; Public exploit reference

This month

HIGH 8.1UPGRADE

CVE-2020-25744 is a high-severity flaw (CVSS 8.1) affecting safervpn. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

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.

Why this priority

High severity
Public exploit reference

A fixed release or distro patch exists.

Risk facts

CVSS score	8.1 (High)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	Low
User interaction	None
EPSS exploit chance	1.4% (top 27%)
CISA exploited list	No
Weakness	CWE-59
Published	2020-09-18
Last modified	2026-06-17

Publisher (CNA): MITRE · Vendor: safervpn

Last updated 2026-06-17 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score

Am I affected?

Timeline

2020-09-18 02:15 UTCPublished CVE record published
2026-06-17 03:07 UTCUpdated Record last modified

safervpn safervpn UPGRADE

Affected: < 5.0.3.3

Fixed in: 5.0.3.3

Safe to downgrade to: no unaffected older release

1. Check installed version

apt-cache policy safervpn || rpm -q safervpn || safervpn --version

2. UPGRADE to 5.0.3.3 (Debian / Ubuntu)

sudo apt update && sudo apt install --only-upgrade safervpn

2. UPGRADE (RHEL / Amazon Linux / Fedora)

sudo dnf upgrade safervpn

Note

Distros often backport fixes without changing the version number. Confirm with the distro advisory or changelog.

Verify at the official source NVD · CVE Program · Report a problem with this page
Scores and fixes here are computed automatically from those and other public sources. Confirm with the vendor advisory before changing production systems.

Quick answers

How do I fix CVE-2020-25744?

safervpn: upgrade to 5.0.3.3. Exact commands for each OS are on this page.

Is CVE-2020-25744 being exploited?

CVE-2020-25744 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

What does CVE-2020-25744 affect?

CVE-2020-25744 affects safervpn. Severity is high (CVSS 8.1). 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.

How urgent is CVE-2020-25744?

Priority 52/100. High severity; Public exploit reference

Software pages

Windows vulnerabilities

Related CVEs

CVE-2020-26050 HIGH 7.8 UPGRADE SaferVPN for Windows Ver 5.0.3.3 through 5.0.4.15 could allow local privilege escalation from low privileged u
CVE-2018-10647 HIGH 7.8 DOWNGRADE SaferVPN 4.2.5 for Windows suffers from a SYSTEM privilege escalation vulnerability in its "SaferVPN.Service"

References

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