What is the CVSS score of CVE-2020-36977?

CVE-2020-36977 has a CVSS 3.1 base score of 7.8 (High). CVSS vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H. EPSS exploitation probability: 0.0%.

Which versions of Wondershare Driver Install Service are affected by CVE-2020-36977?

A high-severity vulnerability in ElevationService (CVE-2020-36977) allows attackers to inject malicious code with a CVSS score of 7.8.

Is there a public PoC exploit available for CVE-2020-36977?

Yes, a public proof-of-concept exploit is available for CVE-2020-36977. Prioritise patching immediately. EPSS: 0.0%.

How to fix or mitigate CVE-2020-36977?

Within 24 hours: Identify and inventory all systems running ElevationService; disable or restrict access to the vulnerable executable where operationally feasible; implement network segmentation to limit lateral movement. Within 7 days: Deploy compensating controls (WAF rules, input validation, privilege restrictions); conduct threat assessment of affected systems; brief executive leadership on timeline for resolution. Within 30 days: Monitor vendor advisories for patch release; prepare deployment plan for patch when available; complete remediation or implement permanent alternative solution.

Wondershare Driver Install Service CVE-2020-36977

HIGH

Unquoted Search Path or Element (CWE-428)

2026-01-27 disclosure@vulncheck.com

Privilege Escalation

7.8

CVSS 3.1 · NVD

Severity by source

NVD PRIMARY

7.8 HIGH

AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Primary rating from NVD · only source for this CVE.

CVSS VectorNVD

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Attack Vector

Local

Attack Complexity

Low

Privileges Required

Low

User Interaction

None

Scope

Unchanged

Confidentiality

High

Integrity

High

Availability

High

Lifecycle Timeline

Analysis Generated

Mar 12, 2026 - 21:55 vuln.today

PoC Detected

Jan 29, 2026 - 17:16 vuln.today

Public exploit code

CVE Published

Jan 27, 2026 - 19:16 nvd

HIGH 7.8

DescriptionCVE.org

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.

AnalysisAI

ElevationService executable contains a vulnerability that allows attackers to potentially inject malicious code (CVSS 7.8).

Technical ContextAI

affects ElevationService executable. 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.

Affected ProductsAI

Product: ElevationService executable.

RemediationAI

Monitor vendor advisories for a patch.

CVE-2020-36977 vulnerability details – vuln.today

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Wondershare Driver Install Service CVE-2020-36977

Severity by source

CVSS VectorNVD

Lifecycle Timeline

DescriptionCVE.org

AnalysisAI

Technical ContextAI

Affected ProductsAI

RemediationAI

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External POC / Exploit Code