How severe is CVE-2020-36983?

CVE-2020-36983 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-2020-36983 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (6th percentile), an estimate of the probability of exploitation in the next 30 days.

How do I fix CVE-2020-36983?

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-2020-36983 have an EU (EUVD) identifier?

Yes. CVE-2020-36983 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2020-30868.

When was CVE-2020-36983 published?

CVE-2020-36983 was published on 2026-01-27 and last updated on 2026-06-17.

CVE-2020-36983

CVE-2020-36983 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% (6th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2020-30868
Weakness: CWE-428
Published: 2026-01-27
Last modified: 2026-06-17

Description

Quick 'n Easy FTP Service 3.2 contains an unquoted service path vulnerability that allows local attackers to execute arbitrary code during service startup. Attackers can exploit the misconfigured service binary path to inject malicious executables with elevated LocalSystem privileges during system boot or service restart.

Frequently asked questions

What is CVE-2020-36983?: Quick 'n Easy FTP Service 3.2 contains an unquoted service path vulnerability that allows local attackers to execute arbitrary code during service startup. Attackers can exploit the misconfigured service binary path to inject malicious executables with elevated LocalSystem privileges during system boot or service restart.
How severe is CVE-2020-36983?: CVE-2020-36983 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-2020-36983 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (6th percentile), an estimate of the probability of exploitation in the next 30 days.
How do I fix CVE-2020-36983?: 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-2020-36983 have an EU (EUVD) identifier?: Yes. CVE-2020-36983 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2020-30868.
When was CVE-2020-36983 published?: CVE-2020-36983 was published on 2026-01-27 and last updated on 2026-06-17.

References

Other CWE-428 vulnerabilities

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CVE-2020-9292 — Critical (CVSS 9.8): An unquoted service path vulnerability in the FortiSIEM Windows Agent component may allow an attacker to gain elevated…
CVE-2019-17658 — Critical (CVSS 9.8): An unquoted service path vulnerability in the FortiClient FortiTray component of FortiClientWindows v6.2.2 and prior…
CVE-2019-8459 — Critical (CVSS 9.8): Check Point Endpoint Security Client for Windows, with the VPN blade, before version E80.83, starts a process without…

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