CVE-2025-54349

iperf3: iperf Heap Buffer Overflow

Published Aug 3, 2025 CVSS 3.1 · 6.5 Medium EPSS < 1% KEV · Not listed
Description
In iperf before 3.19.1, iperf_auth.c has an off-by-one error and resultant heap-based buffer overflow.

Remediation

No solution or workaround provided in the CVE record

Tracking

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Advisories

Source ID Title
Debian DLA Debian DLA DLA-4281-1 iperf3 security update
EUVD EUVD EUVD-2025-23456 In iperf before 3.19.1, iperf_auth.c has an off-by-one error and resultant heap-based buffer overflow.
Ubuntu USN Ubuntu USN USN-7970-1 iperf3 vulnerabilities
History
Type Values Removed Values Added
CPEs cpe:2.3:a:iperf_project:iperf:*:*:*:*:*:*:*:* cpe:2.3:a:es:iperf3:*:*:*:*:*:*:*:*
Vendors & Products Iperf Project
Iperf Project iperf
Type Values Removed Values Added
First Time appeared Iperf Project
Iperf Project iperf
CPEs cpe:2.3:a:iperf_project:iperf:*:*:*:*:*:*:*:*
Vendors & Products Iperf Project
Iperf Project iperf
Type Values Removed Values Added
First Time appeared Es
Es iperf3
Vendors & Products Es
Es iperf3
Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}

Type Values Removed Values Added
Title iperf3: iperf Heap Buffer Overflow
References
Metrics threat_severity

None

threat_severity

Moderate

Type Values Removed Values Added
Description In iperf before 3.19.1, iperf_auth.c has an off-by-one error and resultant heap-based buffer overflow.
Weaknesses CWE-193
References
Metrics cvssV3_1

{'score': 6.5, 'vector': 'CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:L/I:L/A:L'}

Weaknesses

Sources

Status
PUBLISHED
Assigner
mitre
Published
Updated
Nov 3, 2025, 6:13 PM
Reserved
Jul 21, 2025, 12:00 AM
Status
Modified
Published
Aug 3, 2025, 2:15 AM
Modified
Jun 17, 2026, 9:39 AM
Severity
Moderate
Public date
Aug 3, 2025, 12:00 AM