CVE-2026-18916

Name
CVE-2026-18916
Description
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.
NVD Severity
unknown
Other trackers
CVE, NVD, CERT, CVE Details, CIRCL, Arch Linux, Debian, Red Hat, Ubuntu, Gentoo, SUSE (Bugzilla), SUSE (CVE), Mageia
Mailing lists
oss-security, full-disclosure, bugtraq
Exploits
Exploit DB, Metasploit
Forges
GitHub (code, issues), Aports (code, issues)

References

Type URI
sep@nlnetlabs.nl https://www.nlnetlabs.nl/downloads/nsd/CVE-2026-18916.txt

Match rules

CPE URI Source package Min version Max version
cpe:2.3:a:nlnetlabs:nsd:*:*:*:*:*:*:*:* nsd >= 3.2.11 < 4.15.1

Vulnerable and fixed packages

Source package Branch Version Maintainer Status
nsd edge-main 4.15.1-r0 Natanael Copa <ncopa@alpinelinux.org> fixed
nsd edge-main 4.15.0-r0 Natanael Copa <ncopa@alpinelinux.org> possibly vulnerable
nsd edge-main 4.14.3-r0 Natanael Copa <ncopa@alpinelinux.org> possibly vulnerable
nsd edge-main 4.14.2-r0 Natanael Copa <ncopa@alpinelinux.org> possibly vulnerable
nsd edge-main 4.14.1-r0 Natanael Copa <ncopa@alpinelinux.org> possibly vulnerable
nsd edge-main 4.14.0-r0 Natanael Copa <ncopa@alpinelinux.org> possibly vulnerable
nsd edge-main 4.13.0-r0 Natanael Copa <ncopa@alpinelinux.org> possibly vulnerable
nsd edge-main 4.12.0-r0 Natanael Copa <ncopa@alpinelinux.org> possibly vulnerable
nsd edge-main 4.11.1-r0 Natanael Copa <ncopa@alpinelinux.org> possibly vulnerable
nsd edge-main 4.11.0-r0 Natanael Copa <ncopa@alpinelinux.org> possibly vulnerable
nsd edge-main 4.10.1-r0 Natanael Copa <ncopa@alpinelinux.org> possibly vulnerable
nsd edge-main 4.3.4-r0 None possibly vulnerable
nsd 3.24-main 4.14.3-r0 Natanael Copa <ncopa@alpinelinux.org> possibly vulnerable
nsd 3.24-main 4.14.2-r0 Natanael Copa <ncopa@alpinelinux.org> possibly vulnerable
nsd 3.23-main 4.13.0-r0 Natanael Copa <ncopa@alpinelinux.org> possibly vulnerable
nsd 3.22-main 4.12.0-r0 Natanael Copa <ncopa@alpinelinux.org> possibly vulnerable
nsd 3.22-main 4.3.4-r0 None possibly vulnerable
nsd 3.21-main 4.11.1-r0 Natanael Copa <ncopa@alpinelinux.org> possibly vulnerable
nsd 3.21-main 4.11.0-r0 Natanael Copa <ncopa@alpinelinux.org> possibly vulnerable
nsd 3.21-main 4.10.1-r0 Natanael Copa <ncopa@alpinelinux.org> possibly vulnerable
nsd 3.21-main 4.3.4-r0 None possibly vulnerable
nsd 3.20-main 4.9.1-r0 Natanael Copa <ncopa@alpinelinux.org> possibly vulnerable
nsd 3.20-main 4.3.4-r0 None possibly vulnerable
nsd 3.19-main 4.7.0-r0 Natanael Copa <ncopa@alpinelinux.org> possibly vulnerable
nsd 3.19-main 4.3.4-r0 None possibly vulnerable