AUGUST 15, 2026
Live Feed
Back to database
Case File

CVE-2026-71218

MEDIUM · CVSS 5.3 EPSS 0.38% Public Exploit

Source: NVD + CISA KEV + EPSS · Published 2026-08-11 · Last synced 2026-08-15

CyberRota Analysis

AI-Generated

A vulnerability in the `JSON_read()` function of iperf3 allows remote unauthenticated attackers to exploit peer-controlled message lengths, resulting in unbounded memory allocation. This can lead to excessive memory consumption, causing Denial of Service (DoS) through service slowdown or termination. Organizations using iperf3 should prioritize addressing this issue to mitigate potential disruptions in network performance.

Public Exploit Signal

A public exploit, PoC, GitHub repository or Metasploit reference was detected for this CVE.

Detected Signals
exploit
GitHub PoC Links

Note: these links are listed for security research and verification purposes only.

CVE
CVE-2026-71218
Severity
MEDIUM
CVSS
5.3
EPSS
0.38%

Original NVD Description

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.