CVE-2021-41638
CVE-2021-41638 is a high-severity vulnerability in Melag Ftp 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-287.
Key facts
- Severity: High (CVSS 3.x base score 7.5)
- CVSS v2: 5.0
- EPSS exploit prediction: 2% (73rd percentile)
- Actively exploited: Not listed in CISA KEV
- Weakness: CWE-287
- Affected product: Melag Ftp Server
- Published:
- Last modified:
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.
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 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 high, integrity none, and availability none.
- Is CVE-2021-41638 being actively exploited?
- It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (73rd percentile), an estimate of the probability of exploitation in the next 30 days.
- What products are affected by CVE-2021-41638?
- CVE-2021-41638 affects Melag Ftp Server. See the affected-products list for the exact vulnerable versions.
- How do I fix CVE-2021-41638?
- 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-2021-41638 published?
- CVE-2021-41638 was published on 2022-06-24 and last updated on 2026-06-17.
References
Affected products (1)
- cpe:2.3:a:melag:ftp_server:2.2.0.4:*:*:*:*:*:*:*
More vulnerabilities in Melag Ftp Server
- CVE-2021-41635 — High (CVSS 8.8): When installed as Windows service MELAG FTP Server 2.2.0.4 is run as SYSTEM user, which grants remote attackers to…
- CVE-2021-41637 — High (CVSS 7.1): Weak access control permissions in MELAG FTP Server 2.2.0.4 allow the "Everyone" group to read the local FTP…
- CVE-2021-41636 — Medium (CVSS 6.5): MELAG FTP Server 2.2.0.4 allows an attacker to use the CWD command to break out of the FTP servers root directory and…
- CVE-2021-41639 — Medium (CVSS 5.5): MELAG FTP Server 2.2.0.4 stores unencrpyted passwords of FTP users in a local configuration file.
- CVE-2021-41634 — Medium (CVSS 5.3): A user enumeration vulnerability in MELAG FTP Server 2.2.0.4 allows an attacker to identify valid FTP usernames.
All CVEs affecting Melag Ftp Server →
Other CWE-287 (Improper Authentication) vulnerabilities
- CVE-2026-45480 — Critical (CVSS 10.0): Improper authentication in Azure Active Directory allows an unauthorized attacker to elevate privileges over a network.
- CVE-2026-46389 — Critical (CVSS 10.0): UDS Identity Config builds the Keycloak configuration image (realm, plugins, theme, truststore, JARs) consumed by UDS…
- CVE-2026-10611 — Critical (CVSS 10.0): An authentication bypass vulnerability exists in MISP when LDAP mixed authentication is enabled with OTP enforcement.…
- CVE-2026-47280 — Critical (CVSS 10.0): Improper authentication in Azure Resource Manager (ARM) allows an unauthorized attacker to elevate privileges over a…
- CVE-2026-42822 — Critical (CVSS 10.0): Improper authentication in Azure Local Disconnected Operations allows an unauthorized attacker to elevate privileges…
- CVE-2026-20182 — Critical (CVSS 10.0): May 2026: This security advisory provides the details and fix information for a vulnerability that was discovered and…
Browse all CWE-287 (Improper Authentication) vulnerabilities →