How severe is CVE-2021-27932?

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

Vulnerability in Stormshield SSL Vpn Client

CVE-2021-27932

Stormshield Network Security (SNS) VPN SSL Client 2.1.0 through 2.8.0 has Insecure Permissions.

Published 2023-08-25 · last modified 2026-06-17.

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: 0.002 (8.2th percentile), scored 2026-09-30.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 8th percentile — 8.2% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.002 · newest: 0.002 · change: 0.000

Affected products

Stormshield SSL Vpn Client

References

advisories.stormshield.eu (Vendor Advisory)
advisories.stormshield.eu/2021-004/ (Vendor Advisory)

Frequently asked questions

What is CVE-2021-27932?: CVE-2021-27932 is a high-severity vulnerability in Stormshield SSL Vpn Client. CVSS score: 7.8/10. Published 2023-08-25.
How severe is CVE-2021-27932?: High severity. CVSS v3 base score is 7.8 out of 10.