What is CVE-2020-36977?

CVE-2020-36977 is a high-severity vulnerability in Wondershare Driver Install Service Help, classified under Unquoted Search Path or Element. CVSS score: 7.8/10. Published 2026-01-27.

How severe is CVE-2020-36977?

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

Vulnerability in Wondershare Driver Install Service Help

CVE-2020-36977

Wondershare Driver Install Service contains an unquoted service path vulnerability in the ElevationService executable that allows local attackers to potentially inject malicious code. Attackers can exploit the unquoted path to replace the service binary with a malicious executable, enabling privilege escalation to LocalSystem account.

EPSS: 0.002 (8.4th percentile) — read the EPSS interpretation.

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.

Affected products

Wondershare Driver Install Service Help — versions 10.7.1.321

Weakness classification (CWE)

CWE-428 — Unquoted Search Path or Element

References

disclosure@vulncheck.com (exploit)
disclosure@vulncheck.com (product)
disclosure@vulncheck.com (product)
disclosure@vulncheck.com (third-party-advisory)

Frequently asked questions

What is CVE-2020-36977?: CVE-2020-36977 is a high-severity vulnerability in Wondershare Driver Install Service Help, classified under Unquoted Search Path or Element. CVSS score: 7.8/10. Published 2026-01-27.
How severe is CVE-2020-36977?: High severity. CVSS v3 base score is 7.8 out of 10.