Detections
Analytics

Echo: iperf3: security update to 3.18-2+deb13u2+e1

high Tenable Cloud Security Plugin ID 478334

Description

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

 - A flaw was found in iperf3. A remote attacker can exploit this vulnerability by sending crafted control-
 channel JSON with oversized numeric parameters, such as `parallel` and `len`, which are not properly
 validated by the server. This improper input validation can lead to excessive stream and thread creation,
 as well as large buffer allocations, causing resource exhaustion. Consequently, this can result in a
 Denial of Service (DoS) on the affected iperf3 server. (CVE-2026-71217)

Solution

Update the iperf3 library and its related packages to version 3.18-2+deb13u2+e1 or later.

See Also

https://advisory.echohq.com/cve/CVE-2026-71217

Plugin Details

Severity: High

ID: 478334

Version: Revision 1.1

Type: Local

Published: 11/4/2026

Updated: 11/4/2026

Risk Information

VPR

Risk Factor: Medium

Score: 5.7

Percentile: 95.89

CVSS v2

Risk Factor: High

Base Score: 7.8

Temporal Score: 6.1

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

CVSS Score Source: CVE-2026-71217

CVSS v3

Risk Factor: High

Base Score: 7.5

Temporal Score: 6.7

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

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

Vulnerability Information

Exploit Available: true

Exploit Ease: Exploits are available

Patch Publication Date: 11/4/2026

Vulnerability Publication Date: 8/11/2026

Reference Information

CVE: CVE-2026-71217