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CVE-2025-54350

iperf3: iperf Authentication Decode Failure

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Severity

Low

Red Hat Product Security

3.7

CVSS 3.1

Review impact separately from score.

Published · August 3, 2025

Updated · June 30, 2026

Description

A flaw was found in iperf3. A malformed Base64-encoded authentication string triggers an assertion failure within the iperf_auth.c file, leading to application termination. This vulnerability allows a network attacker to induce this failure by sending a crafted authentication attempt, resulting in an application-level denial of service condition.

CVSS score applicability

The CVSS score(s) listed for this vulnerability do not reflect the associated product's status, and are included for informational purposes to better understand the severity of this vulnerability.

Mitigation

Mitigation for this issue is either not available or the currently available options do not meet the Red Hat Product Security criteria comprising ease of use and deployment, applicability to widespread installation base or stability.

CVSS / CWE

CVSS 3.1 · 3.7
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:L

CWE-617 · Reachable Assertion