Detections
Analytics

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

high Tenable Self-Hosted Container Security Plugin ID 476465

Description

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

 - Heap-based buffer overflow in the xmlFAParsePosCharGroup function in libxml2 before 2.9.4, as used in
 Apple iOS before 9.3.2, OS X before 10.11.5, tvOS before 9.2.1, and watchOS before 2.2.1, allows remote
 attackers to execute arbitrary code or cause a denial of service (memory corruption) via a crafted XML
 document. (CVE-2016-1840)

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-2016-1840

Plugin Details

Severity: High

ID: 476465

Version: Revision 1.1

Type: Local

Published: 10/21/2026

Updated: 10/21/2026

Risk Information

VPR

Risk Factor: Medium

Score: 4.9

Percentile: 57.12

CVSS v2

Risk Factor: Medium

Base Score: 6.8

Temporal Score: 5.3

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

CVSS Score Source: CVE-2016-1840

CVSS v3

Risk Factor: High

Base Score: 7.8

Temporal Score: 7

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

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

Vulnerability Information

Exploit Available: true

Exploit Ease: Exploits are available

Patch Publication Date: 10/21/2026

Vulnerability Publication Date: 5/9/2016

Reference Information

CVE: CVE-2016-1840