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CVE-2025-54349: es iperf3 Off-by-one Error

CVSS: 10.0v3.1CriticalModified
AliasesALPINE-CVE-2025-54349RHSA-2026:1592RHSA-2026:1595
Published 03-08-2025Last modified 03-11-2025
Open JSON

Vulnerability summary

CVE-2025-54349 is a critical (CVSS 10.0) Off-by-one Error vulnerability in es iperf3. EPSS estimates a 0.41% chance of exploitation in the next 30 days, higher than 33.9% of scored vulnerabilities.

Overall risk
70/100
0100
High · default modelHow is this calculated?
CVSS score
10.0/10
010
Critical · v3.1 (NVD)
EPSS score
0.41%
0%100%
Low · +0.02 pp in 30 days
KEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded

Advisory lineage

Upstream 0 · Downstream 5 · Related 3
DLA-4281-1MGASA-2026-0021OPENSUSE-SU-2025:15414-1SUSE-SU-2025:02749-1USN-7970-1

Timeline

  1. 03-08-2025
    PublishedVulnerability first disclosed.
  2. 03-11-2025
    Last modifiedVulnerability information updated.

Description

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

CVSS metrics

6 scores · 6 sources · 1 version

EPSS trend

Probability

0.41%

Chance of exploitation in the next 30 days

Percentile

34%

Versus all other CVEs

30-day change

+0.02 pp

From 0.40% on 19-09-2026

19-09-202619-10-2026
EPSS score
0.41%

Known exploited

Compare KEV catalogs

Not in any of the 3 tracked catalogs.

Public exploits

0 found

No public exploits indexed.

Weaknesses

CWE · root cause

Affected systems

Redhat3 products
  • iperf3< 0:3.5-12.el8_10 | < 0:3.9-14.el9_7.1 | < 0:3.17.1-5.el10_1 | < 0:3.9-14.el9_6.1 | < 0:3.9-11.el9_4.2 | < 0:3.9-10.el9_0.2 | < 0:3.9-10.el9_2.2 | < 0:3.17.1-4.el10_0.1 | < 0:3.5-7.el8_8.2 | < 0:3.5-4.el8_2.2 | < 0:3.5-7.el8_4.2 | < 0:3.5-7.el8_6.2
  • iperf3-debuginfo< 0:3.5-12.el8_10 | < 0:3.9-14.el9_7.1 | < 0:3.17.1-5.el10_1 | < 0:3.9-14.el9_6.1 | < 0:3.9-11.el9_4.2 | < 0:3.9-10.el9_0.2 | < 0:3.9-10.el9_2.2 | < 0:3.17.1-4.el10_0.1 | < 0:3.5-7.el8_8.2 | < 0:3.5-4.el8_2.2 | < 0:3.5-7.el8_4.2 | < 0:3.5-7.el8_6.2
  • iperf3-debugsource< 0:3.5-12.el8_10 | < 0:3.9-14.el9_7.1 | < 0:3.17.1-5.el10_1 | < 0:3.9-14.el9_6.1 | < 0:3.9-11.el9_4.2 | < 0:3.9-10.el9_0.2 | < 0:3.9-10.el9_2.2 | < 0:3.17.1-4.el10_0.1 | < 0:3.5-7.el8_8.2 | < 0:3.5-4.el8_2.2 | < 0:3.5-7.el8_4.2 | < 0:3.5-7.el8_6.2
Alpine1 product
  • iperf3≥ 3.2, < 3.19.1-r0
Debian1 product
  • iperf3< 3.12-1+deb12u2 | < 3.18-2+deb13u1 | < 3.19.1-1
Es1 product
  • iperf3< 3.19.1 | ≥ 3.2, < 3.19.1
Ubuntu1 product
  • iperf3< 3.7-3ubuntu0.1~esm2 | < 3.9-1+deb11u1ubuntu0.1 | < 3.16-1ubuntu0.1~esm1 | < 3.18-2ubuntu0.1

5 vendors · 7 products

References

36 links
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