CVE-2026-18916

Summary

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 Software

VendorProductVersion RangeStatus
NLnet LabsNSD3.2.11 < 4.15.1affected

Weaknesses

  • CWE-191: CWE-191: Integer Underflow

ADP Enrichment

CISA ADP Vulnrichment

  • SSVC:
  • Exploitation: none
    • Automatable: yes
    • Technical Impact: partial

References