CVE-2021-33486
published 2021-08-03CVE-2021-33486: All versions of the CODESYS V3 Runtime Toolkit for VxWorks from version V3.5.8.0 and before version V3.5.17.10 have Improper Handling of Exceptional Conditions.
PriorityP434high7.5CVSS 3.1
AVNACLPRNUINSUCNINAH
EPSS
0.96%
57.6th percentile
All versions of the CODESYS V3 Runtime Toolkit for VxWorks from version V3.5.8.0 and before version V3.5.17.10 have Improper Handling of Exceptional Conditions.
Affected
1 ranges
| Vendor | Product | Version range | Fixed in |
|---|---|---|---|
| codesys | runtime_toolkit | >= 3.5.8.0 < 3.5.17.10 | 3.5.17.10 |
CVSS provenance
nvdv3.17.5HIGHCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
nvdv2.05.0MEDIUMAV:N/AC:L/Au:N/C:N/I:N/A:P
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CISA ICS
CODESYS in Festo Automation Suite
cisa_ics·2026-03-17
CODESYS in Festo Automation Suite
ICS Advisory
##
CODESYS in Festo Automation Suite
Release DateMarch 17, 2026
Alert CodeICSA-26-076-01
Related topics:
Industrial Control System Vulnerabilities, Industrial Control Systems
View CSAF
## Summary
3. TECHNICAL DETAILS
The following versions of CODESYS in Festo Automation Suite are affected:
- FESTO Software Festo Automation Suite (versions prior to 2.8.0.138) installed with CODESYS Software CODESYS Development System (3.0) vers:all/*
- FESTO Software Festo Automation Suite (versions prior to 2.8.0.138) installed with CODESYS Software CODESYS Development System (3.5.16.10) vers:all/*
- FESTO Software Festo Automation Suite (2.8.0.137) installed with CODESYS Software CODESYS Development System (3.0) vers:all/*
- FESTO Software Festo Automation
GHSA
GHSA-qw37-6chx-mmm4: All versions of the CODESYS V3 Runtime Toolkit for VxWorks from version V3
ghsa_unreviewed·2022-05-24
CVE-2021-33486 [HIGH] CWE-755 GHSA-qw37-6chx-mmm4: All versions of the CODESYS V3 Runtime Toolkit for VxWorks from version V3
All versions of the CODESYS V3 Runtime Toolkit for VxWorks from version V3.5.8.0 and before version V3.5.17.10 have Improper Handling of Exceptional Conditions.
No detection rules found.
No public exploits indexed.
No writeups or analysis indexed.
2021-08-03
Published