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

critical Tenable Self-Hosted Container Security Plugin ID 476505

Description

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

 - Format string vulnerability in libxml2 before 2.9.4 allows attackers to have unspecified impact via format
 string specifiers in unknown vectors. (CVE-2016-4448)

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-2016-4448

Plugin Details

Severity: Critical

ID: 476505

Version: Revision 1.1

Type: Local

Published: 10/21/2026

Updated: 10/21/2026

Risk Information

VPR

Risk Factor: Medium

Score: 6.9

Percentile: 97.35

CVSS v2

Risk Factor: Critical

Base Score: 10

Temporal Score: 7.4

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

CVSS Score Source: CVE-2016-4448

CVSS v3

Risk Factor: Critical

Base Score: 9.8

Temporal Score: 8.5

Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/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-2016-4448