DEBIAN-CVE-2026-18916

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Source
https://security-tracker.debian.org/tracker/CVE-2026-18916
Import Source
https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-18916.json
JSON Data
https://api.osv.dev/v1/vulns/DEBIAN-CVE-2026-18916
Upstream
Published
2026-08-26T09:16:45Z
Modified
2026-09-09T09:00:08Z
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

Any remote client can crash a NSD serve child, by throttling the TCP receive window after a TCP query. By continuously crashing the serve childs, the remote client can denial all TCP service to this NSD instance.

References

Affected packages

Debian:12 / nsd

Package

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

Affected ranges

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

Affected versions

4.*
4.6.1-1
4.7.0-1
4.8.0-1
4.9.1-1
4.10.1~rc2-1
4.10.1~rc2-2
4.10.1-1
4.11.0-1
4.11.1-1
4.12.0-1
4.12.0-2
4.13.0-1
4.13.0-2
4.13.0-3
4.13.0-4
4.13.0-5
4.13.0-6
4.14.0-1
4.14.1-1
4.14.2-1
4.14.3-1
4.15.0~rc1-1
4.15.0-1
4.15.1-1
4.15.2-1

Ecosystem specific 

{
    "urgency": "not yet assigned"
}

Database specific

source 
"https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-18916.json"

Debian:13 / nsd

Package

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

Affected ranges

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

Affected versions

4.*
4.12.0-1
4.12.0-2
4.13.0-1
4.13.0-2
4.13.0-3
4.13.0-4
4.13.0-5
4.13.0-6
4.14.0-1
4.14.1-1
4.14.2-1
4.14.3-1
4.15.0~rc1-1
4.15.0-1
4.15.1-1
4.15.2-1

Ecosystem specific 

{
    "urgency": "not yet assigned"
}

Database specific

source 
"https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-18916.json"

Debian:14 / nsd

Package

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

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0 Unknown introduced version / All previous versions are affected
Fixed
4.15.1-1

Affected versions

4.*
4.12.0-1
4.12.0-2
4.13.0-1
4.13.0-2
4.13.0-3
4.13.0-4
4.13.0-5
4.13.0-6
4.14.0-1
4.14.1-1
4.14.2-1
4.14.3-1
4.15.0~rc1-1
4.15.0-1

Ecosystem specific 

{
    "urgency": "not yet assigned"
}

Database specific

source 
"https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-18916.json"