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TI-2022-13696 Aliases CVE-2022-31804GHSA-qhgm-4r4g-j663

CODESYS Gateway server prone to denial of service attack due to excessive memory allocation

Priority LOW 35CWE-789Published · Updated

Key facts

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

Attack profile from CVSS 3.1 · CNA. Fix status from CNA. Impact type from CWE-789.

Summary

The CODESYS Gateway Server V2 does not verifiy that the size of a request is within expected limits. An unauthenticated attacker may allocate an arbitrary amount of memory, which may lead to a crash of the Gateway due to an out-of-memory condition.

Why it matters now

EPSS 0.01164 67th percentileScored 2026-11-07
Fix Fixed CODESYS Gateway Server V2 (CODESYS): V2.3.9.38

SSVC decision points

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

Affected products

VendorProductAffected versionsFixed inStatusSource
CODESYSCODESYS Gateway Server V2before V2.3.9.38V2.3.9.38Patch availableCNA
  • CODESYS Gateway Server V2 VendorCODESYS Affected before V2.3.9.38 Fixed in V2.3.9.38 Patch available CNA

CPE configurations NVD · 1

CPEVersionsRoleVendor
cpe:2.3:a:codesys:gateway:*:*:*:*:*:*:*:*2.0 to before 2.3.9.38VulnerableCODESYS
  • cpe:2.3:a:codesys:gateway:*:*:*:*:*:*:*:* Versions 2.0 to before 2.3.9.38 Vulnerable ·CODESYS

Remediation

  • Fix · CNA CODESYS Gateway Server V2 (CODESYS) Fixed in V2.3.9.38

Fixed in the same release

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

  • Release ·

    CODESYS Gateway Server V2 V2.3.9.38

    3 records Highest priority Priority MEDIUM 1 MEDIUM, 2 LOW

    Other records, highest priority first

    • TI-2022-13694 Partial string comparison in CODESYS gateway serverPriority MEDIUM 45
    • TI-2022-13695 CODESYS Gateway Server V2 prone to Denial of Service AttackPriority LOW 26
    Show all 3 records →

Timeline

  1. 2026-10-02 Threatist record created from CVE-2022-31804
  2. 2026-10-03 Alias added: GHSA-qhgm-4r4g-j663

References

Advisory 1

  • TI-2019-06497 An issue was discovered in 3S-Smart CODESYS V3 products. CVSS 3.1CRITICAL 9.8
  • TI-2022-13694 Partial string comparison in CODESYS gateway server CVSS 3.1CRITICAL 9.8
  • 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-2018-14204 Improper Communication Address Filtering exists in CODESYS V3 products versions prior V3.5.14.0. CVSS 3.1HIGH 7.5
  • TI-2018-14203 Use of Insufficiently Random Values exists in CODESYS V3 products versions prior V3.5.14.0. CVSS 3.0HIGH 7.5
  • TI-2019-06499 An issue was discovered in 3S-Smart CODESYS V3 products. CVSS 3.1HIGH 7.5
See all 17 →

Sources

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