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Echo: commons-net:commons-net: security update to 3.9.0

medium Tenable Cloud Security Plugin ID 473830

Description

There are packages installed that are affected by a vulnerability referenced in the following CVE:

 - Prior to Apache Commons Net 3.9.0, Net's FTP client trusts the host from PASV response by default. A
 malicious server can redirect the Commons Net code to use a different host, but the user has to connect to
 the malicious server in the first place. This may lead to leakage of information about services running on
 the private network of the client. The default in version 3.9.0 is now false to ignore such hosts, as cURL
 does. See https://issues.apache.org/jira/browse/NET-711. (CVE-2021-37533)

Solution

Update the commons-net:commons-net library and its related packages to version 3.9.0 or later.

See Also

https://advisory.echohq.com/cve/CVE-2021-37533

Plugin Details

Severity: Medium

ID: 473830

Version: Revision 1.1

Type: Local

Published: 10/8/2026

Updated: 10/8/2026

Risk Information

VPR

Risk Factor: Low

Score: 3

Percentile: 23.18

CVSS v2

Risk Factor: High

Base Score: 7.8

Temporal Score: 5.8

Vector: CVSS2#AV:N/AC:L/Au:N/C:C/I:N/A:N

CVSS Score Source: CVE-2021-37533

CVSS v3

Risk Factor: Medium

Base Score: 6.5

Temporal Score: 5.7

Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N

Temporal Vector: CVSS:3.0/E:U/RL:O/RC:C

Vulnerability Information

Exploit Ease: No known exploits are available

Patch Publication Date: 10/8/2026

Vulnerability Publication Date: 12/3/2022

Reference Information

CVE: CVE-2021-37533