CVEvulnerability

CVE-2026-71217

7.5 HIGH Published 2026-08-11 Modified 2026-08-31 Official page ↗
Status
Awaiting Analysis
Published
2026-08-11
Last modified
2026-08-31
Assigner
[email protected]
CVSS 3.1 ([email protected])
7.5 HIGH — CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Weaknesses
CWE-20

Description

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.

Related

Weakness · CWE (1)

  • CWE-20 Improper Input Validation weakness

References