CVE-2021-41638
HIGHCVSS 7.5/10EPSS 1.58%
Last modified
CVE-2021-41638 is a high-severity vulnerability rated 7.5/10 on the CVSS scale. The authentication checks of the MELAG FTP Server in version 2.2.0.4 are incomplete, which allows a remote attacker to access local files only by using a valid username.. EPSS estimates a 1.58% chance of exploitation in the next 30 days.
Description
The authentication checks of the MELAG FTP Server in version 2.2.0.4 are incomplete, which allows a remote attacker to access local files only by using a valid username.
Metrics
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
Weakness Enumeration
Affected Software
| Vendor | Product | Versions |
|---|---|---|
| Melag | Ftp Server | 2.2.0.4 |
References
- https://www.securesystems.de/blog/advisory-and-exploitation-the-melag-ftp-server/Exploit, Third Party Advisory
- https://www.securesystems.de/blog/advisory-and-exploitation-the-melag-ftp-server/Exploit, Third Party Advisory
Timeline
- Published
- Last Modified
- Status
- Modified
Frequently Asked Questions
What is CVE-2021-41638?
The authentication checks of the MELAG FTP Server in version 2.2.0.4 are incomplete, which allows a remote attacker to access local files only by using a valid username.
How severe is CVE-2021-41638?
CVE-2021-41638 has a CVSS score of 7.5/10 (HIGH severity). The EPSS model estimates a 1.58% probability of exploitation in the next 30 days.
How do I fix CVE-2021-41638?
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.
Related CVEs from 2021
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- CVE-2021-4162archivy is vulnerable to Cross-Site Request Forgery (CSRF)4.3
- CVE-2021-41634A user enumeration vulnerability in MELAG FTP Server 2.2.0.4…5.3
- CVE-2021-41635When installed as Windows service MELAG FTP Server 2.2.0.4 i…8.8
- CVE-2021-41636MELAG FTP Server 2.2.0.4 allows an attacker to use the CWD c…6.5
- CVE-2021-41637Weak access control permissions in MELAG FTP Server 2.2.0.4 …7.1
- CVE-2021-41639MELAG FTP Server 2.2.0.4 stores unencrpyted passwords of FTP…5.5
- CVE-2021-4164calibre-web is vulnerable to Cross-Site Request Forgery (CSR…8.8
- CVE-2021-41641Deno <=1.14.0 file sandbox does not handle symbolic links co…8.4
- CVE-2021-41643Remote Code Execution (RCE) vulnerability exists in Sourceco…9.8
- CVE-2021-41644Remote Code Exection (RCE) vulnerability exists in Sourcecod…9.8
- CVE-2021-41645Remote Code Execution (RCE) vulnerability exists in Sourceco…8.8
Are you affected by CVE-2021-41638?
Run a free Strix scan to check your systems for this vulnerability.
Scan your code nowSource: NVD / NIST