Detections
Analytics

Alpine: multiple xen packages: security update to 4.18.5-r8

high Tenable Cloud Security Plugin ID 441823

Description

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

 - Improper isolation of shared resources within the CPU operation cache on Zen 2-based products could allow
 an attacker to corrupt instructions executed at a different privilege level, potentially resulting in
 privilege escalation. (CVE-2025-54518)

Solution

Update the xen library and its related packages to version 4.18.5-r8 or later.

See Also

https://security.alpinelinux.org/vuln/CVE-2025-54518

Plugin Details

Severity: High

ID: 441823

Version: Revision 1.4

Type: Local

Published: 5/14/2026

Updated: 7/2/2026

Supported Sensors: Agentless Assessment, Tenable Cloud Security, Tenable Self-Hosted Container Security

Risk Information

VPR

Risk Factor: Medium

Score: 4.9

Percentile: 57.88

CVSS v2

Risk Factor: Medium

Base Score: 4.9

Temporal Score: 3.6

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

CVSS Score Source: CVE-2025-54518

CVSS v3

Risk Factor: High

Base Score: 7.5

Temporal Score: 6.5

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

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

CVSS v4

Risk Factor: High

Base Score: 7.3

Threat Score: 4.4

Threat Vector: CVSS:4.0/E:U

Vector: CVSS:4.0/AV:L/AC:H/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N

Vulnerability Information

Exploit Ease: No known exploits are available

Vulnerability Publication Date: 5/12/2026

Reference Information

CVE: CVE-2025-54518