Paper/Archive/CVE-2025-54349

CVE-2025-54349

ES iperf3 — In iperf before 3.19.1, iperf_auth.c has an off-by-one error and resultant heap-based buffer overflow.

EPSS 0.4%CVSS 10.0

critical.is priorityof 100

38

CVSS 10.0 (NVD)10.0 / 10 × 3030.0 Not in CISA KEV+300.0 EPSS percentile 37.9.379 × 207.6 No public exploit+100.0 SSVC exploitation: none+100.0

Description · from the CVE record

In iperf before 3.19.1, iperf_auth.c has an off-by-one error and resultant heap-based buffer overflow.

Affected

ProductAffectedFixed inSource

iperf3< 3.19.13.19.1CNA

Scores by source

NVD10.0CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H

mitre (CNA)6.5CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:L/I:L/A:L

CISA ADPSSVCExploitation: none · Automatable: no · Technical impact: partial

References

refgithub.com/esnet/iperf/commit/4e5313bab0b9b3fe03513ab54f722c8a3e4b7bdf refgithub.com/esnet/iperf/releases/tag/3.19.1 reflists.debian.org/debian-lts-announce/2025/08/msg00020.html