CVE-2026-71218: Iperf3: unbounded peer-controlled allocation in iperf3 json_read() allows unauthenticated remote memory exhaustion

Overview

Severity

Medium (CVSS 5.3)

CVSS Vector

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

Exploit Status

Not Exploited

Patch Tuesday

2026-Aug

Released

2026-08-14

EPSS Score

0.38% (percentile: 31.7%)

Affected Products (1)

Other

• 21721-17084

Revision History

• 2026-08-14: Information published.