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THREAT OPS › Threat News › [NVD] CVE-2026-71217 (HIGH 7.5) — 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 excessi

[NVD] CVE-2026-71217 (HIGH 7.5) — 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 excessi

mednvdPublished 2026-08-11

CVE-2026-71217 CVSS: 7.5 HIGH Published: 2026-08-11T09:17:14.057

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

Indicators of compromise

CVE-2026-71217cve

Original source: https://nvd.nist.gov/vuln/detail/CVE-2026-71217