What is CVE-2020-10515?

CVE-2020-10515 is a critical-severity vulnerability in Microsoft Windows, classified under Uncontrolled Search Path Element. CVSS score: 9.8/10. Published 2020-04-02.

How severe is CVE-2020-10515?

Critical severity. CVSS v3 base score is 9.8 out of 10.

Vulnerability in Microsoft Windows

CVE-2020-10515

STARFACE UCC Client before 6.7.1.204 on WIndows allows binary planting to execute code with System rights, aka usd-2020-0006.

Published 2020-04-02 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 9.8 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.

EPSS exploit prediction

EPSS: 0.029 (86.3th percentile), scored 2026-10-01.

Low probability of exploitation in the next 30 days, but still tracked. 86th percentile — 86.3% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.029 · newest: 0.029 · change: 0.000

Affected products

Weakness classification (CWE)

CWE-427 — Uncontrolled Search Path Element

References

herolab.usd.de/security-advisories/ (Third Party Advisory)
www.starface.com/en/business-telephony/ (Vendor Advisory)
support.starface.de/forum/showthread.php (Release Notes, Vendor Advisory)

Frequently asked questions

What is CVE-2020-10515?: CVE-2020-10515 is a critical-severity vulnerability in Microsoft Windows, classified under Uncontrolled Search Path Element. CVSS score: 9.8/10. Published 2020-04-02.
How severe is CVE-2020-10515?: Critical severity. CVSS v3 base score is 9.8 out of 10.