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Linux Distros Unpatched Vulnerability : CVE-2025-66382

low Nessus Plugin ID 276983

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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.

 - In libexpat through 2.7.3, a crafted file with an approximate size of 2 MiB can lead to dozens of seconds of processing time. (CVE-2025-66382)

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-2025-66382

https://security-tracker.debian.org/tracker/CVE-2025-66382

https://ubuntu.com/security/CVE-2025-66382

Plugin Details

Severity: Low

ID: 276983

File Name: unpatched_CVE_2025_66382.nasl

Version: 1.2

Type: local

Agent: unix

Family: Misc.

Published: 12/1/2025

Updated: 12/2/2025

Supported Sensors: Agentless Assessment, Frictionless Assessment Agent, Frictionless Assessment AWS, Frictionless Assessment Azure, Nessus Agent, Nessus

Risk Information

VPR

Risk Factor: Low

Score: 3.6

CVSS v2

Risk Factor: Medium

Base Score: 4.3

Temporal Score: 3.7

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

CVSS Score Source: CVE-2025-66382

CVSS v3

Risk Factor: Low

Base Score: 2.9

Temporal Score: 2.7

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

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

Vulnerability Information

CPE: p-cpe:/a:redhat:enterprise_linux:xmlrpc-c-client%2b%2b, 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:expat-static, p-cpe:/a:canonical:ubuntu_linux:cableswig, p-cpe:/a:redhat:enterprise_linux:expat-devel, cpe:/o:redhat:enterprise_linux:6, p-cpe:/a:canonical:ubuntu_linux:cadaver, p-cpe:/a:canonical:ubuntu_linux:coin3, p-cpe:/a:centos:centos:expat-devel, p-cpe:/a:redhat:enterprise_linux:xmlrpc-c-c%2b%2b, p-cpe:/a:canonical:ubuntu_linux:ayttm, p-cpe:/a:canonical:ubuntu_linux:smart, p-cpe:/a:centos:centos:firefox-x11, p-cpe:/a:centos:centos:xmlrpc-c-client%2b%2b, cpe:/o:debian:debian_linux:12.0, p-cpe:/a:canonical:ubuntu_linux:vtk, p-cpe:/a:centos:centos:mingw64-expat, p-cpe:/a:centos:centos:xmlrpc-c, p-cpe:/a:redhat:enterprise_linux:mingw32-expat, p-cpe:/a:redhat:enterprise_linux:expat, cpe:/o:canonical:ubuntu_linux:25.10, cpe:/o:redhat:enterprise_linux:9, cpe:/o:canonical:ubuntu_linux:18.04:-:lts, p-cpe:/a:redhat:enterprise_linux:thunderbird, cpe:/o:centos:centos:8, p-cpe:/a:canonical:ubuntu_linux:vnc4, p-cpe:/a:canonical:ubuntu_linux:xmlrpc-c, cpe:/o:redhat:enterprise_linux:8, cpe:/o:redhat:enterprise_linux:10, cpe:/o:debian:debian_linux:13.0, cpe:/o:canonical:ubuntu_linux:14.04:-:lts, p-cpe:/a:canonical:ubuntu_linux:matanza, p-cpe:/a:centos:centos:expat, p-cpe:/a:debian:debian_linux:expat, p-cpe:/a:canonical:ubuntu_linux:expat, p-cpe:/a:redhat:enterprise_linux:mingw-expat, p-cpe:/a:redhat:enterprise_linux:xmlrpc-c-devel, p-cpe:/a:redhat:enterprise_linux:mingw64-expat, p-cpe:/a:centos:centos:xmlrpc-c-client, p-cpe:/a:centos:centos:firefox, p-cpe:/a:centos:centos:compat-expat1, p-cpe:/a:redhat:enterprise_linux:xmlrpc-c-client, p-cpe:/a:centos:centos:mingw-expat, p-cpe:/a:centos:centos:mingw32-expat, p-cpe:/a:canonical:ubuntu_linux:tdom, p-cpe:/a:redhat:enterprise_linux:firefox-x11, p-cpe:/a:canonical:ubuntu_linux:wbxml2, p-cpe:/a:canonical:ubuntu_linux:insighttoolkit4, p-cpe:/a:centos:centos:xmlrpc-c-devel, p-cpe:/a:redhat:enterprise_linux:xmlrpc-c, cpe:/o:canonical:ubuntu_linux:25.04, cpe:/o:centos:centos:7, p-cpe:/a:redhat:enterprise_linux:compat-expat1, cpe:/o:canonical:ubuntu_linux:16.04:-:lts, cpe:/o:redhat:enterprise_linux:7, p-cpe:/a:canonical:ubuntu_linux:swish-e, p-cpe:/a:centos:centos:thunderbird, p-cpe:/a:centos:centos:xmlrpc-c-c%2b%2b, p-cpe:/a:canonical:ubuntu_linux:gdcm, cpe:/o:canonical:ubuntu_linux:22.04:-:lts, cpe:/o:debian:debian_linux:14.0, p-cpe:/a:canonical:ubuntu_linux:libxmltok, p-cpe:/a:redhat:enterprise_linux:firefox, p-cpe:/a:redhat:enterprise_linux:expat-static

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: 11/28/2025

Reference Information

CVE: CVE-2025-66382