Detections
Analytics

Alpine: multiple ntpsec packages: security update to 1.2.5-r0

medium Tenable Cloud Security Plugin ID 445581

Description

There are packages installed that are affected by a vulnerability referenced in the following CVE:

 - Buffer overflow in NTPsec's Zyfer refclock allows local attacker to crash ntpd (CVE-2026-18321)

Solution

Update the ntpsec library and its related packages to version 1.2.5-r0 or later.

See Also

https://security.alpinelinux.org/vuln/CVE-2026-18321

Plugin Details

Severity: Medium

ID: 445581

Version: Revision 1.1

Type: Local

Published: 8/3/2026

Updated: 8/3/2026

Supported Sensors: Agentless Assessment

Risk Information

VPR

Risk Factor: Low

Score: 3

Percentile: 23.74

CVSS v2

Risk Factor: Low

Base Score: 3.8

Temporal Score: 2.8

Vector: CVSS2#AV:L/AC:H/Au:S/C:N/I:N/A:C

CVSS Score Source: CVE-2026-18321

CVSS v3

Risk Factor: Medium

Base Score: 4.7

Temporal Score: 4.1

Vector: CVSS:3.0/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H

Temporal Vector: CVSS:3.0/E:U/RL:O/RC:C

Vulnerability Information

Exploit Ease: No known exploits are available

Vulnerability Publication Date: 7/31/2026

Reference Information

CVE: CVE-2026-18321