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VULNERABILITIES

CVE-2026-71217 Details

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.

Metrics

CVSS 3.x Severity and Vector Strings:

CNA: [email protected]CVSS-B:7.5 HIGHVector:CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

References to Advisories, Solutions, and Tools

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URLSource(s)Tag(s)
https://access.redhat.com/errata/RHSA-2026:61257 [email protected]
https://access.redhat.com/errata/RHSA-2026:61389 [email protected]
https://access.redhat.com/errata/RHSA-2026:61680 [email protected]
https://access.redhat.com/security/cve/CVE-2026-71217 [email protected]
https://bugzilla.redhat.com/show_bug.cgi?id=2460984 [email protected]

see all 6 references

Weakness Enumeration

CWE-IDCWE NameSource
CWE-20Improper Input Validation[email protected]

Affected Products

No affected product data is available for this CVE.

Change History

6 change records found show changes

QUICK INFO

CVE Dictionary Entry:
CVE-2026-71217
NVD Published Date:
Aug 11, 2026
NVD Last Modified:
Aug 31, 2026
Source:
[email protected]
CVE-2026-71217 Details - Not Deferred