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TI-2026-32408 Aliases CVE-2026-44469GHSA-fhx5-27vm-6mqj

Incorrect Default Permissions in CODESYS Development System

Priority LOW 38CWE-276Published · Updated

Key facts

Attack vector
Local
Privileges required
Low
User interaction
None
Attack complexity
Low
Attack requirements
None
Impact type
—
Confidentiality · integrity · availability
High · High · High
Fix status
Fixed

Attack profile from CVSS 4.0 · CNA. Fix status from CNA.

Summary

The affected product extracts installation files to a temporary directory with incorrect default permissions during administrative installation. A low-privileged local attacker can exploit a TOCTOU race condition with a practical time window to replace verified files with malicious ones before installation, resulting in local privilege escalation.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00105 1st percentileScored 2026-11-07
Fix Fixed CODESYS Development System (CODESYS): 3.5.22.20

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
None
Automatable
No
Technical impact
Total

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

VendorProductAffected versionsFixed inStatusSource
CODESYSCODESYS Development System3.0.0.0 to before 3.5.22.203.5.22.20Patch availableCNA
  • CODESYS Development System VendorCODESYS Affected 3.0.0.0 to before 3.5.22.20 Fixed in 3.5.22.20 Patch available CNA

CPE configurations NVD · 1

CPEVersionsRoleVendor
cpe:2.3:a:codesys:development_system:*:*:*:*:*:*:*:*before 3.5.22.20VulnerableCODESYS
  • cpe:2.3:a:codesys:development_system:*:*:*:*:*:*:*:* Versions before 3.5.22.20 Vulnerable ·CODESYS

Remediation

  • Fix · CNA CODESYS Development System (CODESYS) Fixed in 3.5.22.20

Fixed in the same release

Records fixed by the same vendor advisory or release, as the CNA lists them.

  • Release ·

    CODESYS Development System 3.5.22.20

    2 records Highest priority Priority LOW 2 LOW

    Other records, highest priority first

    • TI-2026-32407 Incorrect Default Permissions in CODESYS Development SystemPriority LOW 38
    Show all 2 records →

Timeline

  1. 2026-10-02 Threatist record created from CVE-2026-44469
  2. 2026-10-03 Alias added: GHSA-fhx5-27vm-6mqj

References

Advisory 1

  • TI-2019-06497 An issue was discovered in 3S-Smart CODESYS V3 products. CVSS 3.1CRITICAL 9.8
  • TI-2023-03420 CODESYS: Missing integrity check in CODESYS Development System CVSS 3.1HIGH 8.8
  • TI-2022-03868 CODESYS: Exposure of Resource to Wrong Sphere in CODESYS V3 CVSS 3.1HIGH 8.8
  • TI-2021-10055 CODESYS Gateway 3 before 3.5.16.70 has a NULL pointer dereference that may result in a denial of service (DoS). CVSS 3.1HIGH 7.5
  • TI-2026-32407 Incorrect Default Permissions in CODESYS Development System CVSS 4.0HIGH 8.5
  • TI-2022-06791 A component of the CODESYS Control runtime system allows read and write access to configuration files CVSS 3.1HIGH 8.1
See all 42 →

Sources

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