What is CVE-2021-41057?

CVE-2021-41057 is a high-severity vulnerability in Microsoft Windows, classified under Improper Link Resolution Before File Access. CVSS score: 7.1/10. Published 2021-11-14.

How severe is CVE-2021-41057?

High severity. CVSS v3 base score is 7.1 out of 10.

Vulnerability in Microsoft Windows

CVE-2021-41057

In WIBU CodeMeter Runtime before 7.30a, creating a crafted CmDongles symbolic link will overwrite the linked file without checking permissions.

Published 2021-11-14 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 7.1 (High). Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:H.

EPSS exploit prediction

EPSS: 0.003 (22.5th percentile), scored 2026-11-01.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 23rd percentile — 22.5% 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

Microsoft Windows
Siemens Pss Cape — versions 14
Siemens Pss E
Siemens Pss Odms
Siemens Sicam 230
Siemens Simatic Information Server — versions 2019
Siemens Simatic Pcs Neo
Siemens Simatic Process Historian
Siemens Simatic Wincc Oa
Siemens Simit

Weakness classification (CWE)

CWE-59 — Improper Link Resolution Before File Access

References

www.wibu.com/us/support/security-advisories.html (Vendor Advisory)
cert-portal.siemens.com/productcert/pdf/ssa-580693.pdf (Third Party Advisory)
cdn.wibu.com/fileadmin/wibu_downloads/security_advisories/Advisory_WIBU-210910-… (Mitigation, Vendor Advisory)

Frequently asked questions

What is CVE-2021-41057?: CVE-2021-41057 is a high-severity vulnerability in Microsoft Windows, classified under Improper Link Resolution Before File Access. CVSS score: 7.1/10. Published 2021-11-14.
How severe is CVE-2021-41057?: High severity. CVSS v3 base score is 7.1 out of 10.