Upstream information

CVE-2026-18321 at MITRE

Description

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

SUSE information

Overall state of this security issue: New

This issue is currently rated as having moderate severity.

CVSS v3 Scores
CVSS detail CNA (Gitlab)
Base Score 4.7
Vector CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H
Attack Vector Local
Attack Complexity High
Privileges Required Low
User Interaction None
Scope Unchanged
Confidentiality Impact None
Integrity Impact None
Availability Impact High
CVSSv3 Version 3.1
No SUSE Bugzilla entries cross referenced.

No SUSE Security Announcements cross referenced.

List of released packages

Product(s) Fixed package version(s) References
openSUSE Tumbleweed
  • libntpc1 >= 1.2.5-1.1
  • ntpsec >= 1.2.5-1.1
  • ntpsec-devel >= 1.2.5-1.1
  • ntpsec-doc >= 1.2.5-1.1
  • ntpsec-utils >= 1.2.5-1.1
  • python3-ntp >= 1.2.5-1.1
 Patchnames:
openSUSE-Tumbleweed-2026-11417

SUSE Timeline for this CVE

CVE page created: Sun Aug 2 11:35:31 2026
CVE page last modified: Sun Aug 2 11:35:31 2026