CVE-2020-21588
MEDIUMCVSS 5.5/10EPSS 0.25%
Last modified
CVE-2020-21588 is a medium-severity vulnerability rated 5.5/10 on the CVSS scale. Buffer overflow in Core FTP LE v2.2 allows local attackers to cause a denial or service (crash) via a long string in the Setup->Users->Username editbox.. EPSS estimates a 0.25% chance of exploitation in the next 30 days.
Description
Buffer overflow in Core FTP LE v2.2 allows local attackers to cause a denial or service (crash) via a long string in the Setup->Users->Username editbox.
Metrics
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Weakness Enumeration
Affected Software
| Vendor | Product | Versions |
|---|---|---|
| Coreftp | Core Ftp | 2.2 |
References
- https://github.com/lonely-explorer/CoreFTP/issues/1Third Party Advisory
- https://github.com/pwnninja/CoreFTP/issues/1Third Party Advisory
- https://github.com/lonely-explorer/CoreFTP/issues/1Third Party Advisory
- https://github.com/pwnninja/CoreFTP/issues/1Third Party Advisory
Timeline
- Published
- Last Modified
- Status
- Modified
Frequently Asked Questions
What is CVE-2020-21588?
Buffer overflow in Core FTP LE v2.2 allows local attackers to cause a denial or service (crash) via a long string in the Setup->Users->Username editbox.
How severe is CVE-2020-21588?
CVE-2020-21588 has a CVSS score of 5.5/10 (MEDIUM severity). The EPSS model estimates a 0.25% probability of exploitation in the next 30 days.
How do I fix CVE-2020-21588?
Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.
How Strix Helps
- How Strix found a critical auth bypass in etcdStrix autonomously discovered a critical authentication bypass in etcd, later designated CVE-2026-33413.
- Autonomous PentestingAI agents that find and validate exploitable vulnerabilities like this one across your applications.
- PR ReviewsPentest every pull request so vulnerable code is caught before it ships to production.
- AI Penetration TestingHow AI-driven penetration testing continuously covers your attack surface.
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Are you affected by CVE-2020-21588?
Run a free Strix scan to check your systems for this vulnerability.
Scan your code nowSource: NVD / NIST