RHEL 9 : iperf3 (RHSA-2026:61389)

The remote Redhat Enterprise Linux 9 host has a package installed that is affected by a vulnerability as referenced in the RHSA-2026:61389 advisory. Iperf is a tool which can measure maximum TCP bandwidth and tune various parameters and UDP characteristics. Iperf reports bandwidth, delay jitter,...

AlmaLinux 8 : iperf3 (ALSA-2026:61257)

The remote AlmaLinux 8 host has a package installed that is affected by a vulnerability as referenced in the ALSA-2026:61257 advisory. iperf3: iperf3 server accepts unbounded peer-controlled JSON parameters enabling remote denial of service via resource exhaustion CVE-2026-71217 Tenable has...

ALSA-2026:61389 Important: iperf3 security update

Iperf is a tool which can measure maximum TCP bandwidth and tune various parameters and UDP characteristics. Iperf reports bandwidth, delay jitter, and data-gram loss. Security Fixes: iperf3: iperf3 server accepts unbounded peer-controlled JSON parameters enabling remote denial of service via...

OESA-2026-3527 iperf3 security update

Iperf is a tool for active measurements of the maximum achievable bandwidth on IP networks. It supports tuning of various parameters related to timing, protocols, and buffers. Security Fixes: A flaw was found in iperf3. A remote attacker can exploit this vulnerability by sending crafted...

Unity Linux 20.1050e / 20.1060e / 20.1070e Security Update: iperf3 (UTSA-2026-104808)

The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2026-104808 advisory. 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...

CVE-2026-71217 affecting package iperf3 for versions less than 3.17.1-5

CVE-2026-71217 affecting package iperf3 for versions less than 3.17.1-5. A patched version of the package is available...

CVE-2026-71218 affecting package iperf3 for versions less than 3.17.1-5

CVE-2026-71218 affecting package iperf3 for versions less than 3.17.1-5. A patched version of the package is available...

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

...

DEBIAN-CVE-2026-71217

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...

AZL-95601 CVE-2026-71217 affecting package iperf3 for versions less than 3.17.1-5

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...

CVE-2026-71217

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...

AZL-95598 CVE-2026-71218 affecting package iperf3 for versions less than 3.17.1-5

A flaw was found in iperf3. A remote unauthenticated attacker can exploit a vulnerability in the JSONread function, which accepts a peer-controlled message length and allocates memory without an upper bound. This allows the attacker to trigger excessive memory consumption, leading to a Denial of...

DEBIAN-CVE-2026-71218

A flaw was found in iperf3. A remote unauthenticated attacker can exploit a vulnerability in the JSONread function, which accepts a peer-controlled message length and allocates memory without an upper bound. This allows the attacker to trigger excessive memory consumption, leading to a Denial of...

CVE-2026-71218

A flaw was found in iperf3. A remote unauthenticated attacker can exploit a vulnerability in the JSONread function, which accepts a peer-controlled message length and allocates memory without an upper bound. This allows the attacker to trigger excessive memory consumption, leading to a Denial of...

UBUNTU-CVE-2026-71217

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...

CVE-2026-71217

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...

UBUNTU-CVE-2026-71218

A flaw was found in iperf3. A remote unauthenticated attacker can exploit a vulnerability in the JSONread function, which accepts a peer-controlled message length and allocates memory without an upper bound. This allows the attacker to trigger excessive memory consumption, leading to a Denial of...

CVE-2026-71218

A flaw was found in iperf3. A remote unauthenticated attacker can exploit a vulnerability in the JSONread function, which accepts a peer-controlled message length and allocates memory without an upper bound. This allows the attacker to trigger excessive memory consumption, leading to a Denial of...

EUVD-2026-55991

A flaw was found in iperf3. A remote unauthenticated attacker can exploit a vulnerability in the JSONread function, which accepts a peer-controlled message length and allocates memory without an upper bound. This allows the attacker to trigger excessive memory consumption, leading to a Denial of...

CVE-2026-71218

CVE-2026-71218 in iperf3 involves a flaw in the JSON_read() function where a peer-controlled message length is accepted and memory is allocated without an upper bound. This can cause excessive memory consumption, leading to DoS via memory exhaustion, severe slowdown, or service termination. The i...