2509863 – (CVE-2026-18321) CVE-2026-18321 ntpsec: NTPsec: Denial of Service via buffer overflow in Zyfer refclock

Bug 2509863 (CVE-2026-18321) - CVE-2026-18321 ntpsec: NTPsec: Denial of Service via buffer overflow in Zyfer refclock

Summary: CVE-2026-18321 ntpsec: NTPsec: Denial of Service via buffer overflow in Zyfer...

Keywords:
Status:	NEW
Alias:	CVE-2026-18321
Product:	Security Response
Classification:	Other
Component:	vulnerability
Sub Component:
Version:	unspecified
Hardware:	All
OS:	Linux
Priority:	low
Severity:	low
Target Milestone:	---
Assignee:	Product Security DevOps Team
QA Contact:
Docs Contact:
URL:
Whiteboard:
Depends On:	2514432 2514433
Blocks:
TreeView+	depends on / blocked

Attachments	(Terms of Use)

Description OSIDB Bzimport 2026-07-31 19:01:29 UTC

Buffer overflow in NTPsec's Zyfer refclock allows local attacker to crash ntpd

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