CVE-2026-18916: Remote TCP DoS by throttling the TCP receive window
NLnet Labs · NSD
Vendor fix available · Affected: NLnet Labs NSD · Exploitation: unlikely (under 1%)
Not in CyberSIXT coverage yet: no article names this CVE. This page shows the public record.
Higher than 40% of scored CVEs
DescriptionCVE.org
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.
Affected products1
From the CVE record. A product or version that is not listed is unknown, not unaffected.
- NLnet Labs · NSDfrom 3.2.11 before 4.15.1
On the Atlas
Every published CVE is on the CyberSIXT Atlas, grouped by weakness, vendor and month.
- Exploitation
- Unlikely (under 1%). EPSS under 1%, or no score yet.
- CISA KEV
- Not listed
- Public check
- No public nuclei template
- Vendor
- NLnet Labs
- Published
- August 2026
CoverageNo articles yet
No CyberSIXT article names CVE-2026-18916 yet, so there is no coverage timeline, action brief or change log for it. Everything on this page comes from the public CVE record, CISA KEV, EPSS and the nuclei template index. Search the archive or see the CVEs in the news.