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HIGH

CVE-2020-18077

CVSS v3

7.5

HIGH

EPSS Score

1.2 %

exploit probability, as of 2026-09-25

CISA KEV

No

known exploited

Exploitation

—

SSVC status

Description

A buffer overflow vulnerability in the Virtual Path Mapping component of FTPShell v6.83 allows attackers to cause a denial of service (DoS).

Technical details

Published
2021-12-17

Frequently asked questions

What is CVE-2020-18077?

A buffer overflow vulnerability in the Virtual Path Mapping component of FTPShell v6.83 allows attackers to cause a denial of service (DoS).

Is CVE-2020-18077 actively exploited?

Active exploitation of CVE-2020-18077 has not been confirmed. Its EPSS score was 1.2% on 2026-09-25, the estimated probability of exploitation in the next 30 days.

What is the CVSS score for CVE-2020-18077?

CVE-2020-18077 has a CVSS v3 base score of 7.5 (HIGH severity).

Is CVE-2020-18077 affecting your environment?

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