CVE-2021-33486

HIGH 7.5CVE-2021-33486 · Published 03/08/2021 · updated 17/06/2026

In short

CVE-2021-33486 is a HIGH (CVSS 7.5) vulnerability affecting runtime toolkit (codesys).
Chance of exploitation in the next 30 days (EPSS): 0.96%, higher than 61.6% of all vulnerabilities.
Fix: update to 3.5.17.10 or later.

Package	Affected versions	Patched versions
runtime toolkit codesys	`≥ 3.5.8.0, < 3.5.17.10`	`3.5.17.10`

Description

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.

References

customers.codesys.com/index.php · Vendor Advisory

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Package

Affected versions

Patched versions

runtime toolkit

codesys

≥ 3.5.8.0, < 3.5.17.10

3.5.17.10

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