CVE-2020-5196
CVE-2020-5196 is a high-severity vulnerability in Cerberusftp Ftp Server with a CVSS 3.x base score of 8.1. 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-276.
Key facts
- Severity: High (CVSS 3.x base score 8.1)
- CVSS v2: 5.5
- EPSS exploit prediction: 1% (65th percentile)
- Actively exploited: Not listed in CISA KEV
- Weakness: CWE-276
- Affected product: Cerberusftp Ftp Server
- Published:
- Last modified:
Description
Cerberus FTP Server Enterprise Edition prior to versions 11.0.3 and 10.0.18 allows an authenticated attacker to create files, display hidden files, list directories, and list files without the permission to zip and download (or unzip and upload) files. There are multiple ways to bypass certain permissions by utilizing the zip and unzip features. As a result, users without permission can see files, folders, and hidden files, and can create directories without permission.
Frequently asked questions
- What is CVE-2020-5196?
- Cerberus FTP Server Enterprise Edition prior to versions 11.0.3 and 10.0.18 allows an authenticated attacker to create files, display hidden files, list directories, and list files without the permission to zip and download (or unzip and upload) files. There are multiple ways to bypass certain permissions by utilizing the zip and unzip features. As a result, users without permission can see files, folders, and hidden files, and can create directories without permission.
- How severe is CVE-2020-5196?
- CVE-2020-5196 has a CVSS 3.x base score of 8.1, rated high severity. It is exploitable over network with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability none.
- Is CVE-2020-5196 being actively exploited?
- It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (65th percentile), an estimate of the probability of exploitation in the next 30 days.
- What products are affected by CVE-2020-5196?
- CVE-2020-5196 affects Cerberusftp Ftp Server. See the affected-products list for the exact vulnerable versions.
- How do I fix CVE-2020-5196?
- 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-2020-5196 published?
- CVE-2020-5196 was published on 2020-01-14 and last updated on 2026-06-17.
References
- https://support.cerberusftp.com/hc/en-us/community/topics/360000164199-Announcements
- https://www.cerberusftp.com/zip-unzip-permission-bypass-vulnerability-fixed-in-cerberus-ftp-server-versions-11-0-3-and-10-0-18/
- https://www.doyler.net/security-not-included/cerberus-ftp-vulnerabilities
Affected products (1)
- cpe:2.3:a:cerberusftp:ftp_server:*:*:*:*:enterprise:*:*:*
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