Detections
Analytics
Linux Distros Unpatched Vulnerability : CVE-2026-54371
high Nessus Plugin ID 323820
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Synopsis
The Linux/Unix host has one or more packages installed with a vulnerability that the vendor indicates will not be patched.Description
The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available.- attr before version 2.6.0 contains a symlink traversal vulnerability in the getfattr and setfattr utilities that allows local attackers to escalate privileges by replacing a pathname component with a symbolic link during directory hierarchy traversal. Attackers who control a pathname component can redirect getfattr and setfattr operations to arbitrary files by substituting a symlink, leading to local privilege escalation when getfattr or setfattr is invoked by a privileged process over an attacker- controlled path. (CVE-2026-54371)
Note that Nessus relies on the presence of the package as reported by the vendor.
Solution
There is no known solution at this time.See Also
https://access.redhat.com/security/cve/cve-2026-54371
Plugin Details
Severity: High
ID: 323820
File Name: unpatched_CVE_2026_54371.nasl
Version: 1.6
Type: Local
Agent: unix
Family: Misc.
Published: 6/30/2026
Updated: 7/16/2026
Supported Sensors: Agentless Assessment, Frictionless Assessment Agent, Frictionless Assessment AWS, Frictionless Assessment Azure, Nessus Agent, Tenable Cloud Security, Tenable Self-Hosted Container Security, Nessus
Risk Information
VPR
Risk Factor: Medium
Score: 4.3
Percentile: 53.64
CVSS v2
Risk Factor: Medium
Base Score: 6.2
Temporal Score: 5.3
Vector: CVSS2#AV:L/AC:L/Au:S/C:C/I:C/A:N
CVSS Score Source: CVE-2026-54371
CVSS v3
Risk Factor: Medium
Base Score: 6.3
Temporal Score: 5.8
Vector: CVSS:3.0/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:N
Temporal Vector: CVSS:3.0/E:U/RL:U/RC:C
CVSS v4
Risk Factor: High
Base Score: 8.4
Threat Score: 5.8
Threat Vector: CVSS:4.0/E:U
Vector: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N
Vulnerability Information
CPE: cpe:/o:debian:debian_linux:11.0, cpe:/o:canonical:ubuntu_linux:20.04:-:lts, cpe:/o:canonical:ubuntu_linux:24.04:-:lts, p-cpe:/a:centos:centos:attr, cpe:/o:redhat:enterprise_linux:6, p-cpe:/a:debian:debian_linux:attr, cpe:/o:debian:debian_linux:12.0, p-cpe:/a:centos:centos:libattr, cpe:/o:canonical:ubuntu_linux:25.10, cpe:/o:redhat:enterprise_linux:9, cpe:/o:canonical:ubuntu_linux:18.04:-:lts, p-cpe:/a:centos:centos:libattr-devel, cpe:/o:centos:centos:8, p-cpe:/a:redhat:enterprise_linux:libattr-devel, cpe:/o:redhat:enterprise_linux:8, cpe:/o:debian:debian_linux:13.0, cpe:/o:redhat:enterprise_linux:10, cpe:/o:canonical:ubuntu_linux:14.04:-:lts, p-cpe:/a:canonical:ubuntu_linux:attr, p-cpe:/a:redhat:enterprise_linux:libattr, p-cpe:/a:redhat:enterprise_linux:attr, cpe:/o:canonical:ubuntu_linux:26.04:-:lts, cpe:/o:centos:centos:7, cpe:/o:canonical:ubuntu_linux:16.04:-:lts, cpe:/o:redhat:enterprise_linux:7, cpe:/o:canonical:ubuntu_linux:22.04:-:lts
Required KB Items: Host/cpu, Host/local_checks_enabled, global_settings/vendor_unpatched, Host/OS/identifier
Exploit Ease: No known exploits are available
Vulnerability Publication Date: 6/29/2026
Reference Information
CVE: CVE-2026-54371