CVE-2020-18077
CVE-2020-18077 is a high-severity vulnerability in Ftpshell Ftpshell Server with a CVSS 3.x base score of 7.5. 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-120.
Key facts
- Severity: High (CVSS 3.x base score 7.5)
- CVSS v2: 5.0
- EPSS exploit prediction: 1% (63rd percentile)
- Actively exploited: Not listed in CISA KEV
- Weakness: CWE-120
- Affected product: Ftpshell Ftpshell Server
- Published:
- Last modified:
Description
A buffer overflow vulnerability in the Virtual Path Mapping component of FTPShell v6.83 allows attackers to cause a denial of service (DoS).
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).
- How severe is CVE-2020-18077?
- CVE-2020-18077 has a CVSS 3.x base score of 7.5, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is none, integrity none, and availability high.
- Is CVE-2020-18077 being actively exploited?
- It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (63rd percentile), an estimate of the probability of exploitation in the next 30 days.
- What products are affected by CVE-2020-18077?
- CVE-2020-18077 affects Ftpshell Ftpshell Server. See the affected-products list for the exact vulnerable versions.
- How do I fix CVE-2020-18077?
- 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.
- When was CVE-2020-18077 published?
- CVE-2020-18077 was published on 2021-12-17 and last updated on 2026-06-17.
References
Affected products (1)
- cpe:2.3:a:ftpshell:ftpshell_server:6.83:*:*:*:*:*:*:*
More vulnerabilities in Ftpshell Ftpshell Server
- CVE-2009-0349 — Critical (CVSS 9.3): Stack-based buffer overflow in FTPShell Server 4.3 allows user-assisted remote attackers to cause a denial of service…
- CVE-2019-25619 — High (CVSS 8.4): FTP Shell Server 6.83 contains a buffer overflow vulnerability in the 'Account name to ban' field that allows local…
- CVE-2018-25226 — Medium (CVSS 6.2): FTPShell Server 6.83 contains a buffer overflow vulnerability that allows local attackers to crash the application by…
- CVE-2005-2426 — Low (CVSS 2.1): FTPshell Server 3.38 allows remote authenticated users to cause a denial of service (application crash) by multiple…
All CVEs affecting Ftpshell Ftpshell Server →
Other CWE-120 (Classic Buffer Overflow) vulnerabilities
- CVE-2025-48611 — Critical (CVSS 10.0): In DeviceId of DeviceId.java, there is a possible desync in persistence due to a missing bounds check. This could lead…
- CVE-2026-24823 — Critical (CVSS 10.0): Out-of-bounds Write, Buffer Copy without Checking Size of Input ('Classic Buffer Overflow') vulnerability in FASTSHIFT…
- CVE-2026-24810 — Critical (CVSS 10.0): Buffer Copy without Checking Size of Input ('Classic Buffer Overflow') vulnerability in rethinkdb (src/cjson modules).…
- CVE-2026-24800 — Critical (CVSS 10.0): Out-of-bounds Write, Buffer Copy without Checking Size of Input ('Classic Buffer Overflow') vulnerability in tildearrow…
- CVE-2025-9962 — Critical (CVSS 10.0): A buffer overflow vulnerability in Novakon P series allows attackers to gain root permission without prior…
- CVE-2010-10016 — Critical (CVSS 10.0): BS.Player version 2.57 (build 1051) contains a vulnerability in its playlist import functionality. When processing .m3u…
Browse all CWE-120 (Classic Buffer Overflow) vulnerabilities →