PT-2021-20148 · 3S Smart Software Solutions+1 · Codesys V3 Runtime Toolkit+1

Published 2021-08-03 · Updated 2021-08-17 · CVE-2021-33486

Positive Technologies (AI Summary)

CVSS v3.1

7.5

High

Base vector

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

Name of the Vulnerable Software and Affected Versions CODESYS V3 Runtime Toolkit for VxWorks versions 3.5.8.0 through 3.5.17.10

Description The issue is related to Improper Handling of Exceptional Conditions. No information is provided about the estimated number of potentially affected devices worldwide or real-world incidents where this issue was exploited.

Recommendations For versions 3.5.8.0 through 3.5.17.10, update to a version after 3.5.17.10 to resolve the issue. At the moment, there is no information about additional mitigation measures for this issue.

Fix

Improper Handling of Exceptional Conditions

Weakness Enumeration

CWE-755

Related Identifiers

CVE-2021-33486

Affected Products

Codesys V3 Runtime Toolkit

Vxworks

References · 4

• https://nvd.nist.gov/vuln/detail/CVE-2021-33486 · Security Note
• https://customers.codesys.com/index.php?eID=dumpFile&t=f&f=14806&token=637e12e86301b83beac1653bd88da3aa5aa3f51b&download= · Vendor Advisory
• https://osv.dev/vulnerability/CVE-2021-33486 · Vendor Advisory
• https://t.me/cibsecurity/26752 · Telegram Post