Read the docs
TI-2021-12889 Aliases CVE-2021-33486GHSA-qw37-6chx-mmm4

All versions of the CODESYS V3 Runtime Toolkit for VxWorks from version V3.5.8.0 and…

Priority LOW 35CWE-755Published · Updated

Key facts

Attack vector
Network
Privileges required
None
User interaction
None
Attack complexity
Low
Impact type
—
Confidentiality · integrity · availability
None · None · High
Fix status
No fix listed

Attack profile from CVSS 3.1 · NVD. Fix status from CNA.

Summary

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.

Why it matters now

EPSS 0.00961 61st percentileScored 2026-11-07
Fix No fix listed No fixed version in the sources yet

SSVC decision points

Not available: CISA has not published SSVC decision points for this record.

Affected products

VendorProductAffected versionsFixed inStatusSource
——all versions—No fix listedCNA
  • — Vendor— Affected all versions Fixed in — No fix listed CNA

CPE configurations NVD · 1

CPEVersionsRoleVendor
cpe:2.3:a:codesys:runtime_toolkit:*:*:*:*:*:vxworks:*:*3.5.8.0 to before 3.5.17.10VulnerableCODESYS
  • cpe:2.3:a:codesys:runtime_toolkit:*:*:*:*:*:vxworks:*:* Versions 3.5.8.0 to before 3.5.17.10 Vulnerable ·CODESYS

Remediation

No fixed version listed by the sources yet.

Timeline

  1. 2026-10-02 Threatist record created from CVE-2021-33486
  2. 2026-10-03 Alias added: GHSA-qw37-6chx-mmm4

References

Advisory 1

  • TI-2022-13698 Insecure default settings in CODESYS Runtime Toolkit 32 bit full and CODESYS PLCWinNT CVSS 3.1CRITICAL 9.8
  • TI-2021-10734 CODESYS V2 runtime system before 2.4.7.55 has Improper Input Validation. CVSS 3.1HIGH 7.5
  • TI-2021-10725 CODESYS V2 runtime system SP before 2.4.7.55 has a Heap-based Buffer Overflow. CVSS 3.1HIGH 7.5
  • TI-2022-03868 CODESYS: Exposure of Resource to Wrong Sphere in CODESYS V3 CVSS 3.1HIGH 8.8
  • TI-2022-13872 CODESYS Runtime System prone to heap based buffer overflow CVSS 3.1HIGH 8.8
  • TI-2023-05836 OS Command Injection in multiple CODESYS products CVSS 3.1HIGH 8.8
See all 22 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences