CVE-2020-36977
CVE-2020-36977 is a high-severity vulnerability with a CVSS 3.x base score of 7.8. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-428.
Key facts
- Severity: High (CVSS 3.x base score 7.8)
- CVSS v4: 8.5
- EPSS exploit prediction: 0% (8th percentile)
- Actively exploited: Not listed in CISA KEV
- EU (EUVD) id: EUVD-2020-30872
- Weakness: CWE-428
- Published:
- Last modified:
Description
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.
Frequently asked questions
- What is 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.
- How severe is CVE-2020-36977?
- CVE-2020-36977 has a CVSS 3.x base score of 7.8, rated high severity. It is exploitable over local access with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
- Is CVE-2020-36977 being actively exploited?
- It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (8th percentile), an estimate of the probability of exploitation in the next 30 days.
- How do I fix CVE-2020-36977?
- Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
- Does CVE-2020-36977 have an EU (EUVD) identifier?
- Yes. CVE-2020-36977 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2020-30872.
- When was CVE-2020-36977 published?
- CVE-2020-36977 was published on 2026-01-27 and last updated on 2026-06-17.
References
- https://www.exploit-db.com/exploits/49101
- https://www.vulncheck.com/advisories/wondershare-driver-install-service-help-elevationservice-unquote-service-path
- https://www.wondershare.com/
- https://www.wondershare.com/drfone/
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