What is CVE-2021-45885?

CVE-2021-45885 is a high-severity vulnerability in Stormshield Network Security, classified under Insufficient Session Expiration. CVSS score: 7.5/10. Published 2021-12-29.

How severe is CVE-2021-45885?

High severity. CVSS v3 base score is 7.5 out of 10.

Vulnerability in Stormshield Network Security

CVE-2021-45885

An issue was discovered in Stormshield Network Security (SNS) 4.2.2 through 4.2.7 (fixed in 4.2.8). Under a specific update-migration scenario, the first SSH password change does not properly clear the old password.

Published 2021-12-29 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 7.5 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N.

EPSS exploit prediction

EPSS: 0.009 (58.7th percentile), scored 2026-10-21.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 59th percentile — 58.7% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.009 · newest: 0.009 · change: 0.000

Affected products

Stormshield Network Security

Weakness classification (CWE)

CWE-613 — Insufficient Session Expiration

References

advisories.stormshield.eu (Vendor Advisory)
advisories.stormshield.eu/2021-069/ (Vendor Advisory)

Frequently asked questions

What is CVE-2021-45885?: CVE-2021-45885 is a high-severity vulnerability in Stormshield Network Security, classified under Insufficient Session Expiration. CVSS score: 7.5/10. Published 2021-12-29.
How severe is CVE-2021-45885?: High severity. CVSS v3 base score is 7.5 out of 10.