What is CVE-2021-35957?

CVE-2021-35957 is a medium-severity vulnerability in Stormshield Endpoint Security, classified under Uncontrolled Search Path Element. CVSS score: 6.7/10. Published 2021-07-13.

How severe is CVE-2021-35957?

Medium severity. CVSS v3 base score is 6.7 out of 10.

Vulnerability in Stormshield Endpoint Security

CVE-2021-35957

Stormshield Endpoint Security Evolution 2.0.0 through 2.0.2 does not accomplish the intended defense against local administrators who can replace the Visual C++ runtime DLLs (in %WINDIR%\system32) with malicious ones.

Published 2021-07-13 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 6.7 (Medium). Vector: CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H.

EPSS exploit prediction

EPSS: 0.003 (14.8th percentile), scored 2026-09-30.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 15th percentile — 14.8% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.003 · newest: 0.003 · change: 0.000

Affected products

Stormshield Endpoint Security

Weakness classification (CWE)

CWE-427 — Uncontrolled Search Path Element

References

advisories.stormshield.eu (Vendor Advisory)
advisories.stormshield.eu/2021-045/ (Vendor Advisory)

Frequently asked questions

What is CVE-2021-35957?: CVE-2021-35957 is a medium-severity vulnerability in Stormshield Endpoint Security, classified under Uncontrolled Search Path Element. CVSS score: 6.7/10. Published 2021-07-13.
How severe is CVE-2021-35957?: Medium severity. CVSS v3 base score is 6.7 out of 10.