Bug 2524297 (CVE-2026-18916) - CVE-2026-18916 nsd: NSD: Denial of Service due to TCP receive window throttling
Summary: CVE-2026-18916 nsd: NSD: Denial of Service due to TCP receive window throttling
Keywords:
Status: NEW
Alias: CVE-2026-18916
Product: Security Response
Classification: Other
Component: vulnerability
Version: unspecified
Hardware: All
OS: Linux
high
high
Target Milestone: ---
Assignee: Product Security DevOps Team
QA Contact:
URL:
Whiteboard:
Depends On: 2524353 2524354
Blocks:
TreeView+ depends on / blocked
 
Reported: 2026-08-26 08:53 UTC by OSIDB Bzimport
Modified: 2026-08-26 11:39 UTC (History)
0 users

Fixed In Version:
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Description OSIDB Bzimport 2026-08-26 08:53:06 UTC 
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.
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