What is CVE-2020-27518?

CVE-2020-27518 is a high-severity vulnerability in Windscribe, classified under Improper Privilege Management. CVSS score: 7.8/10. Published 2021-05-04.

How severe is CVE-2020-27518?

High severity. CVSS v3 base score is 7.8 out of 10.

Privilege escalation in Windscribe

CVE-2020-27518

All versions of Windscribe VPN for Mac and Windows <= v2.02.10 contain a local privilege escalation vulnerability in the WindscribeService component. A low privilege user could leverage several openvpn options to execute code as root/SYSTEM.

Vulnerability class: Privilege Escalation

Published 2021-05-04 · last modified 2026-07-09.

CVSS v3 metric

CVSS v3 base score 7.8 (High). Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H.

EPSS exploit prediction

EPSS: 0.004 (35.5th percentile), scored 2026-09-29.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 36th percentile — 35.5% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.004 · newest: 0.004 · change: 0.000

Affected products

Windscribe

Weakness classification (CWE)

CWE-269 — Improper Privilege Management

References

af854a3a-2127-422b-91ae-364da2661108 (Vendor Advisory)
jeffs.sh/CVEs/CVE-2020-27518.txt (Exploit, Third Party Advisory)

Frequently asked questions

What is CVE-2020-27518?: CVE-2020-27518 is a high-severity vulnerability in Windscribe, classified under Improper Privilege Management. CVSS score: 7.8/10. Published 2021-05-04.
How severe is CVE-2020-27518?: High severity. CVSS v3 base score is 7.8 out of 10.