The ftp client in GNU Inetutils before 2.2 does not validate addresses returned by PASV/LSPV responses to make sure they match the server address. This is similar to CVE-2020-8284 for curl.
Published 2021-09-03 02:15:06
Updated 2023-02-03 19:02:40
Source MITRE
View at NVD,   CVE.org

Products affected by CVE-2021-40491

Threat overview for CVE-2021-40491

Top countries where our scanners detected CVE-2021-40491
Top open port discovered on systems with this issue 21
IPs affected by CVE-2021-40491 268,887
Threat actors abusing to this issue? Yes
Find out if you* are affected by CVE-2021-40491!
*Directly or indirectly through your vendors, service providers and 3rd parties. Powered by attack surface intelligence from SecurityScorecard.

Exploit prediction scoring system (EPSS) score for CVE-2021-40491

0.14%
Probability of exploitation activity in the next 30 days EPSS Score History
~ 49 %
Percentile, the proportion of vulnerabilities that are scored at or less

CVSS scores for CVE-2021-40491

Base Score Base Severity CVSS Vector Exploitability Score Impact Score Score Source First Seen
4.3
MEDIUM AV:N/AC:M/Au:N/C:P/I:N/A:N
8.6
2.9
NIST
6.5
MEDIUM CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N
2.8
3.6
NIST

CWE ids for CVE-2021-40491

References for CVE-2021-40491

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