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TI-2023-03420 Aliases CVE-2023-3663GHSA-c86m-wfx2-qmx9

CODESYS: Missing integrity check in CODESYS Development System

Priority MEDIUM 42CWE-940Published · Updated

Key facts

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

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

Summary

In CODESYS Development System versions from 3.5.11.20 and before 3.5.19.20 a missing integrity check might allow an unauthenticated remote attacker to manipulate the content of notifications received via HTTP by the CODESYS notification server.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.01021 63rd percentileScored 2026-11-07
Fix Fixed CODESYS Development System (CODESYS): 3.5.19.20

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 System3.5.11.20 to before 3.5.19.203.5.19.20Patch availableCNA
  • CODESYS Development System VendorCODESYS Affected 3.5.11.20 to before 3.5.19.20 Fixed in 3.5.19.20 Patch available CNA

CPE configurations NVD · 1

CPEVersionsRoleVendor
cpe:2.3:a:codesys:development_system:*:*:*:*:*:*:*:*3.5.11.20 to before 3.5.19.20VulnerableCODESYS
  • cpe:2.3:a:codesys:development_system:*:*:*:*:*:*:*:* Versions 3.5.11.20 to before 3.5.19.20 Vulnerable ·CODESYS

Remediation

  • Fix · CNA CODESYS Development System (CODESYS) Fixed in 3.5.19.20

Fixed in the same release

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

  • Release ·

    CODESYS Development System 3.5.19.20

    3 records Highest priority Priority MEDIUM 1 MEDIUM, 2 LOW

    Other records, highest priority first

    • TI-2023-03419 CODESYS: Vulnerability in CODESYS Development System allows for execution of binariesPriority LOW 33
    • TI-2023-03426 CODESYS: Missing Brute-Force protection in CODESYS Development SystemPriority LOW 15
    Show all 3 records →

Timeline

  1. 2026-10-02 Threatist record created from CVE-2023-3663
  2. 2026-10-03 Alias added: GHSA-c86m-wfx2-qmx9

References

Advisory 1

  • TI-2019-06497 An issue was discovered in 3S-Smart CODESYS V3 products. CVSS 3.1CRITICAL 9.8
  • 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-2026-32408 Incorrect Default Permissions in CODESYS Development System CVSS 4.0HIGH 8.5
  • 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