CVE-2026-71217: Iperf3: iperf3 server accepts unbounded peer-controlled json parameters enabling remote denial of service via resource exhaustion

Overview

Severity

High (CVSS 7.5)

CVSS Vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Exploit Status

Not Exploited

Patch Tuesday

2026-Aug

Released

2026-08-14

Last Updated

2026-08-23

EPSS Score

0.82% (percentile: 55.9%)

Detection & Weaponization (1 sources)

Maturity: Exploit

• GitHub PoC: 1 repositories

Affected Products (1)

Other

• 21721-17084

Revision History

• 2026-08-14: Information published.
• 2026-08-14: Information published.
• 2026-08-23: Information published.