This page tracks the Debian fix status. The vulnerability itself is described on the main CVE page. View CVE-2026-71218 →
Categories
DEBIAN-CVE-2026-71218

A flaw was found in iperf3. A remote unauthenticated attacker can exploit a vulnerability in the `JSON_read()` function, which accepts a peer-controll...

Original description

The description as published by the source.

A flaw was found in iperf3. A remote unauthenticated attacker can exploit a vulnerability in the JSON_read() 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 Service (DoS) through memory exhaustion, severe slowdown, or termination of the iperf3 service.

Source: OSV.dev (Open Source Vulnerabilities) OSV

Affected packages

Debian:12 iperf3
[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}]
Debian:13 iperf3
[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"3.18-1"}]}]
Debian:14 iperf3
[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"3.18-1"}]}]

References

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