Detections
Analytics

Echo: libxml2-2.9.1: security update to 2.9.1+e1

high Tenable Cloud Security Plugin ID 476476

Description

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

 - XML external entity (XXE) vulnerability in the xmlStringLenDecodeEntities function in parser.c in libxml2
 before 2.9.4, when not in validating mode, allows context-dependent attackers to read arbitrary files or
 cause a denial of service (resource consumption) via unspecified vectors. (CVE-2016-4449)

Solution

Update the libxml2-2.9.1 library and its related packages to version 2.9.1+e1 or later.

See Also

https://access.redhat.com/errata/RHSA-2016:1292

https://advisory.echohq.com/cve/CVE-2016-4449

Plugin Details

Severity: High

ID: 476476

Version: Revision 1.1

Type: Local

Published: 10/21/2026

Updated: 10/21/2026

Risk Information

VPR

Risk Factor: Medium

Score: 4.3

Percentile: 53.04

CVSS v2

Risk Factor: Medium

Base Score: 5.8

Temporal Score: 4.3

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

CVSS Score Source: CVE-2016-4449

CVSS v3

Risk Factor: High

Base Score: 7.1

Temporal Score: 6.2

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

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

Vulnerability Information

Exploit Ease: No known exploits are available

Patch Publication Date: 10/21/2026

Vulnerability Publication Date: 5/23/2016

Reference Information

CVE: CVE-2016-4449