HIGH
CVE-2023-38403
CWE-190Published: July 17, 2023· Updated: Jun 17, 2026
7.5
CVSS v3.1
Official Description
iperf3 before 3.14 allows peers to cause an integer overflow and heap corruption via a crafted length field.
Technical Analysis
CVE-2023-38403 can be exploited remotely over the network without requiring physical or adjacent access, significantly expanding the attack surface for threat actors.
The vulnerability requires no privileges and no user interaction, making it a prime target for automated exploitation campaigns and worm-like propagation.
A successful exploit results in availability disruption (denial of service), with a CVSS base score of 7.5.
CVSS v3.1 Vector Breakdown
Exploitability
Attack VectorNetwork
Attack ComplexityLow
Privileges Req.None
User InteractionNone
ScopeUnchanged
Impact
ConfidentialityNone
IntegrityNone
AvailabilityHigh
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Affected Vendors & Products
Exploit & PoC Resources
NO KNOWN EXPLOITNo public exploit confirmed at this time
Exploit-DB
Offensive Security exploit database
GitHub PoC Search
Community PoC repositories
Rapid7 / Metasploit
Metasploit module search
PacketStorm
Security advisories & exploits
NVD Detail
Official NIST entry
MITRE CVE
CVE Program entry
External links open in a new tab. Always verify in a controlled environment before use.
Official Patches & Advisories
ADVISORYhttps://bugs.debian.org/1040830
ADVISORYhttps://bugs.debian.org/1040830
All References (26)
→
http://seclists.org/fulldisclosure/2023/Oct/24Mailing List · Third Party Advisory
→
http://seclists.org/fulldisclosure/2023/Oct/26Mailing List · Third Party Advisory
→
https://bugs.debian.org/1040830Third Party Advisory
→
https://cwe.mitre.org/data/definitions/130.htmlThird Party Advisory
→
https://github.com/esnet/iperf/issues/1542Issue Tracking · Vendor Advisory
→
https://lists.debian.org/debian-lts-announce/2023/07/msg00025.htmlMailing List · Third Party Advisory
→
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/BV6EBWWF4PEQKROEVXGYSTIT2MGBTLU7/Mailing List · Third Party Advisory
→
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/M25Z5FHTO3XWMGP37JHJ7IIIHSGCLKEV/Mailing List · Third Party Advisory
→
https://security.netapp.com/advisory/ntap-20230818-0016/Third Party Advisory
→
https://support.apple.com/kb/HT213984Release Notes · Third Party Advisory
→
https://support.apple.com/kb/HT213985Release Notes · Third Party Advisory
→
http://seclists.org/fulldisclosure/2023/Oct/24Mailing List · Third Party Advisory
→
http://seclists.org/fulldisclosure/2023/Oct/26Mailing List · Third Party Advisory
Quick Facts
CVE IDCVE-2023-38403
CVSS Score7.5 / 10
SeverityHIGH
WeaknessCWE-190
CISA KEVNo
Affected6 vendor(s)
PublishedJul 17, 2023
Related CVEs (CWE-190)
Recommended Actions
- →Apply vendor patches immediately
- →Monitor CVE-2023-38403 in threat intel feeds
- →Review IDS/IPS signatures for exploitation attempts
Data sourced from NVD (NIST), CISA KEV, and EPSS (FIRST). Analysis generated by CTIWATCH.COM. CVE data is provided under the NVD usage policy.