DEBIAN-CVE-2026-71217

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Source
https://security-tracker.debian.org/tracker/CVE-2026-71217
Import Source
https://storage.googleapis.com/osv-test-debian-osv/debian-cve-osv/DEBIAN-CVE-2026-71217.json
JSON Data
https://api.test.osv.dev/v1/vulns/DEBIAN-CVE-2026-71217
Upstream
Published
2026-08-11T09:17:14Z
Modified
2026-09-01T16:06:59Z
Severity
  • 7.5 (High) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H CVSS Calculator
Summary
[none]
Details

A flaw was found in iperf3. A remote attacker can exploit this vulnerability by sending crafted control-channel JSON with oversized numeric parameters, such as parallel and len, which are not properly validated by the server. This improper input validation can lead to excessive stream and thread creation, as well as large buffer allocations, causing resource exhaustion. Consequently, this can result in a Denial of Service (DoS) on the affected iperf3 server.

References

Affected packages

Debian:12 / iperf3

Package

Name
iperf3
Purl
pkg:deb/debian/iperf3?arch=source&distro=bookworm

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0 Unknown introduced version / All previous versions are affected

Affected versions

3.*
3.12-1
3.12-1+deb12u1
3.12-1+deb12u2
3.13-1
3.13-2
3.14-1
3.15-1
3.16-1
3.17.1-1
3.18-1
3.18-2
3.19.1-1
3.19.1-2
3.20-1
3.20-2
3.20-2.1

Ecosystem specific 

{
    "urgency":  "not yet assigned"
}

Database specific

source 
"https://storage.googleapis.com/osv-test-debian-osv/debian-cve-osv/DEBIAN-CVE-2026-71217.json"

Debian:13 / iperf3

Package

Name
iperf3
Purl
pkg:deb/debian/iperf3?arch=source&distro=trixie

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0 Unknown introduced version / All previous versions are affected

Affected versions

3.*
3.18-2
3.18-2+deb13u1
3.18-2+deb13u2
3.19.1-1
3.19.1-2
3.20-1
3.20-2
3.20-2.1

Ecosystem specific 

{
    "urgency":  "not yet assigned"
}

Database specific

source 
"https://storage.googleapis.com/osv-test-debian-osv/debian-cve-osv/DEBIAN-CVE-2026-71217.json"

Debian:14 / iperf3

Package

Name
iperf3
Purl
pkg:deb/debian/iperf3?arch=source&distro=forky

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0 Unknown introduced version / All previous versions are affected

Affected versions

3.*
3.18-2
3.19.1-1
3.19.1-2
3.20-1
3.20-2
3.20-2.1

Ecosystem specific 

{
    "urgency":  "not yet assigned"
}

Database specific

source 
"https://storage.googleapis.com/osv-test-debian-osv/debian-cve-osv/DEBIAN-CVE-2026-71217.json"