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CVE-2026-71217

Опубликовано: 11 авг. 2026
Источник: redhat
CVSS3: 7.5
EPSS Низкий

Описание

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.

Меры по смягчению последствий

To mitigate this issue, restrict network access to the iperf3 server to trusted clients or networks using firewall rules. If the iperf3 server functionality is not required, disable the iperf3 service.

Затронутые пакеты

ПлатформаПакетСостояниеРекомендацияРелиз
Red Hat Enterprise Linux 10iperf3Affected
Red Hat Enterprise Linux 7iperf3Affected
Red Hat Enterprise Linux 8iperf3Affected
Red Hat Enterprise Linux 9iperf3Affected

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Дополнительная информация

Статус:

Important
Дефект:
CWE-20
https://bugzilla.redhat.com/show_bug.cgi?id=2460984iperf3: iperf3 server accepts unbounded peer-controlled JSON parameters enabling remote denial of service via resource exhaustion

EPSS

Процентиль: 34%
0.00412
Низкий

7.5 High

CVSS3

Связанные уязвимости

CVSS3: 7.5
ubuntu
20 дней назад

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.

CVSS3: 7.5
nvd
20 дней назад

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.

CVSS3: 7.5
msrc
8 дней назад

Iperf3: iperf3 server accepts unbounded peer-controlled json parameters enabling remote denial of service via resource exhaustion

CVSS3: 7.5
debian
20 дней назад

A flaw was found in iperf3. A remote attacker can exploit this vulnera ...

CVSS3: 7.5
github
20 дней назад

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.

EPSS

Процентиль: 34%
0.00412
Низкий

7.5 High

CVSS3