CVE-2023-38403

HIGHNVD 7.55.5▼

7.5

iperf3 before 3.14 allows peers to cause an integer overflow and heap corruption via a crafted length field.

CVSS v3: 7.5
EG Score: 5.5(medium)
EPSS: 80.4%
KEV: Not listed

Published

July 17, 2023

Last Modified

November 21, 2024

References (26)

cve@mitrehttp://seclists.org/fulldisclosure/2023/Oct/24
cve@mitrehttp://seclists.org/fulldisclosure/2023/Oct/26
cve@mitrehttps://bugs.debian.org/1040830
cve@mitrehttps://cwe.mitre.org/data/definitions/130.html
cve@mitrehttps://downloads.es.net/pub/iperf/esnet-secadv-2023-0001.txt.asc
cve@mitrehttps://github.com/esnet/iperf/commit/0ef151550d96cc4460f98832df84b4a1e87c65e9
cve@mitrehttps://github.com/esnet/iperf/issues/1542
cve@mitrehttps://lists.debian.org/debian-lts-announce/2023/07/msg00025.html
cve@mitrehttps://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/BV6EBWWF4PEQKROEVXGYSTIT2MGBTLU7/
cve@mitrehttps://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/M25Z5FHTO3XWMGP37JHJ7IIIHSGCLKEV/
cve@mitrehttps://security.netapp.com/advisory/ntap-20230818-0016/
cve@mitrehttps://support.apple.com/kb/HT213984
cve@mitrehttps://support.apple.com/kb/HT213985
af854a3a-2127-422b-91ae-364da2661108http://seclists.org/fulldisclosure/2023/Oct/24
af854a3a-2127-422b-91ae-364da2661108http://seclists.org/fulldisclosure/2023/Oct/26

Patch Availability(10)

Vendor / Ecosystem	Fixed in / Patch	Released	Source
ubuntu	libiperf0 (3.12-1+deb12u1build0.23.04.1) @ lunar	2026-05-24	ubuntu
ubuntu	libiperf0 (3.0.11-1ubuntu0.1~esm2) @ xenial	2026-05-24	ubuntu
redhat	iperf3-0:3.5-7.el8_8	2023-08-08	redhat
redhat	iperf3-0:3.9-10.el9_2	2023-08-08	redhat
redhat	iperf3-0:3.9-10.el9_0	2023-08-02	redhat
redhat	iperf3-0:3.5-7.el8_4	2023-08-02	redhat
redhat	iperf3-0:3.5-4.el8_1	2023-08-01	redhat
redhat	iperf3-0:3.5-4.el8_2	2023-08-01	redhat
redhat	iperf3-0:3.5-7.el8_6	2023-08-01	redhat
redhat	iperf3-0:3.1.7-3.el7_9	2023-07-31	redhat

Patches are aggregated from vendor advisories (Red Hat, Microsoft, Cisco, GitHub) and package ecosystems (OSV, GHSA). Multiple rows for the same upstream release have been deduplicated.

Weakness Classification(1)

MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.

CWE-190Integer Overflow or Wraparound

All Vendor Advisories

(11)

Every vendor that published an advisory referencing this CVE — pulled from our cve_vendor_advisories aggregation. Click any row for the vendor's original advisory page.

Data Freshness Timeline

(refreshed 16× in last 7d / 20× in last 30d)

Every time one of our enrichment pipelines (NVD, MITRE cvelistV5, EPSS, CISA KEV, GHSA, OSV, vendor advisories) ran against this CVE. Most recent first.

2026-06-05 22:46 UTCepss_batch
2026-06-05 22:46 UTCepss_batch
2026-06-05 06:09 UTCepss_batch
2026-06-05 06:09 UTCepss_batch
2026-06-04 13:11 UTCepss_batch
2026-06-04 13:11 UTCepss_batch
2026-06-02 20:12 UTCepss_batch
2026-06-02 20:12 UTCepss_batch
2026-06-02 20:12 UTCepss_batch
2026-06-01 13:51 UTCepss_batch
2026-06-01 13:51 UTCepss_batch
2026-05-31 22:30 UTCepss_batch
2026-05-31 22:29 UTCepss_batch
2026-05-31 22:29 UTCepss_batch
2026-05-31 00:15 UTCepss_batch
2026-05-31 00:15 UTCepss_batch
2026-05-29 13:43 UTCepss_batch
2026-05-29 13:43 UTCepss_batch
2026-05-28 13:43 UTCepss_batch
2026-05-28 13:43 UTCepss_batch

Frequently asked(5)

What is CVE-2023-38403?

CVE-2023-38403 is a high vulnerability published on July 17, 2023. iperf3 before 3.14 allows peers to cause an integer overflow and heap corruption via a crafted length field.

When was CVE-2023-38403 disclosed?

CVE-2023-38403 was first published in the National Vulnerability Database on July 17, 2023, with the most recent update on November 21, 2024. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.

Is CVE-2023-38403 actively exploited?

CVE-2023-38403 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 80.4% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.

What is the CVSS score of CVE-2023-38403?

CVE-2023-38403 has a CVSS v3 base score of 7.5 (NVD). EchelonGraph synthesises NVD + CISA KEV + FIRST EPSS + GHSA into a combined EG score of 5.5.

How do I remediate CVE-2023-38403?

Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2023-38403, EchelonGraph cross-links them in the Vendor Advisories panel below — those typically contain the canonical remediation steps, fixed version numbers, and any vendor-specific mitigations.

Dependency Blast Radius

See which npm, PyPI, Go, and Maven packages are affected by CVE-2023-38403

Explore →

Is Your Infrastructure Affected by CVE-2023-38403?

EchelonGraph automatically scans your cloud infrastructure and maps CVE exposure using blast radius analysis.

Start Free Scan →Browse All CVEs

CVE-2023-38403

Published

Last Modified

References (26)

Patch Availability(10)

Weakness Classification(1)

All Vendor Advisories

Data Freshness Timeline

Frequently asked(5)

Dependency Blast Radius

Is Your Infrastructure Affected by CVE-2023-38403?

Same vendor

Same CWE

CVE-2023-38403

📅 Published

🔄 Last Modified

🔗 References (26)

Patch Availability(10)

Weakness Classification(1)

All Vendor Advisories

Data Freshness Timeline

❓ Frequently asked(5)

Dependency Blast Radius

Is Your Infrastructure Affected by CVE-2023-38403?

🔗 Related CVEs(same vendor + same CWE)

Same vendor

Same CWE

Published

Last Modified

References (26)

Frequently asked(5)

Related CVEs(same vendor + same CWE)