DEBIAN-CVE-2026-71218

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Source
https://security-tracker.debian.org/tracker/CVE-2026-71218
Import Source
https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-71218.json
JSON Data
https://api.osv.dev/v1/vulns/DEBIAN-CVE-2026-71218
Upstream
Published
2026-08-11T09:17:14Z
Modified
2026-09-14T17:03:51Z
Severity
  • 5.3 (Medium) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L CVSS Calculator
Summary
[none]
Details

A flaw was found in iperf3. A remote unauthenticated attacker can exploit a vulnerability in the JSON_read() function, which accepts a peer-controlled message length and allocates memory without an upper bound. This allows the attacker to trigger excessive memory consumption, leading to a Denial of Service (DoS) through memory exhaustion, severe slowdown, or termination of the iperf3 service.

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/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-71218.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
Fixed
3.18-1

Ecosystem specific 

{
    "urgency": "not yet assigned"
}

Database specific

source 
"https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-71218.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
Fixed
3.18-1

Ecosystem specific 

{
    "urgency": "not yet assigned"
}

Database specific

source 
"https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-71218.json"