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CVE-2021-3518: libxml2 before 2.9.11 (exclusive), libxml2 2.9.11; +20 more affected products

CVE-2021-3518. CVSS 3.1 base score 8.8 (HIGH, NVD). EPSS 0.21859 (percentile 0.97602), scored 13-Oct-2026.

Affected technology

libxml2 · before 2.9.11 (exclusive)
xmlsoft

debian linux · 9.0
debian

jboss core services · Version not applicable in the source CPE
redhat

enterprise linux · 8.0
redhat

fedora · 33
fedoraproject

fedora · 34
fedoraproject

active iq unified manager · Version not applicable in the source CPE
netapp

clustered data ontap · Version not applicable in the source CPE
netapp

clustered data ontap antivirus connector · Version not applicable in the source CPE
netapp

manageability software development kit · Version not applicable in the source CPE
netapp

ontap select deploy administration utility · Version not applicable in the source CPE
netapp

snapdrive · Version not applicable in the source CPE
netapp

hci h410c firmware · Version not applicable in the source CPE
netapp

communications cloud native core network function cloud native environment · 1.10.0
oracle

enterprise manager base platform · 13.4.0.0
oracle

enterprise manager base platform · 13.5.0.0
oracle

enterprise manager ops center · 12.4.0.0
oracle

mysql workbench · through 8.0.26 (inclusive)
oracle

peoplesoft enterprise peopletools · 8.58
oracle

real user experience insight · 13.4.1.0
oracle

real user experience insight · 13.5.1.0
oracle

libxml2 · libxml2 2.9.11
Vendor not specified by the source

SIMATIC S7-1500 CPU 1518-4 PN/DP MFP · V3.1.0 to before V3.1.5
Siemens

SIMATIC S7-1500 CPU 1518F-4 PN/DP MFP · V3.1.0 to before V3.1.5
Siemens

SIPLUS S7-1500 CPU 1518-4 PN/DP MFP · V3.1.0 to before V3.1.5
Siemens

Description’s affected range: versions before 2.9.11

Component: Not specified by the source

Attack conditions (NVD, CVSS 3.1): Network (remote) · No privileges required · User interaction required

What an attacker can do

NVD’s CVSS 3.1 assessment (base score 8.8/10) rates confidentiality, integrity and availability impact as high. The description does not specify what an attacker can achieve beyond these rated impacts.

Published

CWE
CWE-416
CCR priority
40.7 /100 (P3)
CVSS 3.1
8.8 /10 · CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H · NVD
EPSS
0.21859 · percentile 0.97602 · 2026-10-13
KEV
no

Provenance

Stable permalink: https://cybercodered.org/item/cve-cve-2021-3518.html