How severe is CVE-2020-25744?

CVE-2020-25744 has a CVSS 3.x base score of 8.1, rated high severity. It is exploitable over network with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is none, integrity high, and availability high.

Is CVE-2020-25744 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (70th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2020-25744?

CVE-2020-25744 affects Safervpn. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2020-25744?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.

When was CVE-2020-25744 published?

CVE-2020-25744 was published on 2020-09-18 and last updated on 2026-06-17.

CVE-2020-25744

CVE-2020-25744 is a high-severity vulnerability in Safervpn with a CVSS 3.x base score of 8.1. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-59.

Key facts

Severity: High (CVSS 3.x base score 8.1)
CVSS v2: 5.5
EPSS exploit prediction: 1% (70th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-59
Affected product: Safervpn
Published: 2020-09-18
Last modified: 2026-06-17

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.

Frequently asked questions

What is CVE-2020-25744?: 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 severe is CVE-2020-25744?: CVE-2020-25744 has a CVSS 3.x base score of 8.1, rated high severity. It is exploitable over network with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is none, integrity high, and availability high.
Is CVE-2020-25744 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (70th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2020-25744?: CVE-2020-25744 affects Safervpn. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2020-25744?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
When was CVE-2020-25744 published?: CVE-2020-25744 was published on 2020-09-18 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:safervpn:safervpn:*:*:*:*:*:windows:*:*

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