Skip to content

CODESYS · weakness class

Memory Corruption

59 CVEs

Every dot is a CVE in what this vendor ships; the named ones are the most at risk.

likely to be exploited
1

Every one of the 59 is a mark on the map. Named now: 1 to 26, most at risk first.

  1. CODESYS V2 web server: crafted requests could trigger a null pointer dereference (DoS)CVE-2021-34586CODESYS · CVSS 7.5 · 14% likely

    CWE-476

  2. CODESYS V2 web server: crafted requests could trigger a heap-based buffer overflow (DoS)CVE-2021-34583CODESYS · CVSS 7.5 · 8.8% likely

    CWE-122

  3. CODESYS V2 runtime system SP before 2.4.7.55 has a Heap-based Buffer Overflow.CVE-2021-30186Codesys · 7.7% likely

    CWE-787

  4. CODESYS V2 runtime system before 2.4.7.55 has Improper Input Validation.CVE-2021-30195Codesys · 7.6% likely

    CWE-125

  5. Multiple heap-based buffer overflows in 3S-Smart CODESYS Gateway Server before 2.3.9.34 allow remote attackers to execute arbitrary code via opcode (1) 0x3ef or (2) 0x3f0.CVE-2015-6460CODESYS · 6.2% likely

    CWE-119

  6. CODESYS V3 web server, all versions prior to 3.5.14.10, allows an attacker to send specially crafted http or https requests which could cause a stack overflow and create a denial-…CVE-2019-13548Codesys · 6.2% likely

    CWE-121

  7. CODESYS V3 web server before 3.5.15.40, as used in CODESYS Control runtime systems, has a buffer overflow.CVE-2020-10245Codesys · 2.9% likely

    CWE-787

  8. An exploitable memory corruption vulnerability exists in the Name Service Client functionality of 3S-Smart Software Solutions CODESYS GatewayService. A specially crafted packet ca…CVE-2019-5105Codesys · CVSS 7.5 · 2.6% likely

    CWE-119

  9. CODESYS 3 web server before 3.5.15.20, as distributed with CODESYS Control runtime systems, has a Buffer Overflow.CVE-2019-18858Codesys · 2.3% likely

    CWE-120

  10. A Stack Buffer Overflow issue was discovered in 3S-Smart Software Solutions GmbH CODESYS Web Server. The following versions of CODESYS Web Server, part of the CODESYS WebVisu web…CVE-2017-6025Codesys · 2.0% likely

    CWE-121

  11. CODESYS: Multiple products prone to out-of-bounds writeCVE-2022-47379CODESYS · CVSS 8.8 · 2.0% likely

    CWE-787

  12. CODESYS Gateway 3 before 3.5.16.70 has a NULL pointer dereference that may result in a denial of service (DoS).CVE-2021-29241Codesys · CVSS 7.5 · 1.7% likelycovered by CyberSIXT

    CWE-476

  13. Special HTTP(s) Requests can cause a buffer-read causing a crash of the webserver and the runtime system.CVE-2022-22519CODESYS · CVSS 7.5 · 1.7% likely

    CWE-126

  14. CODESYS V2.3 ENI server up to V3.2.2.24 has a Buffer Overflow.CVE-2019-16265Codesys · 1.6% likely

    CWE-787

  15. 3S-Smart Software Solutions GmbH CODESYS V3 OPC UA Server, all versions 3.5.11.0 to 3.5.15.0, allows an attacker to send crafted requests from a trusted OPC UA client that cause a…CVE-2019-13542Codesys · 1.5% likely

    CWE-476

  16. CODESYS Runtime System prone to heap based buffer overflowCVE-2022-32137CODESYS · CVSS 8.8 · 1.4% likely

    CWE-122

  17. CODESYS Control Runtime system before 3.5.17.10 has a Heap-based Buffer Overflow.CVE-2021-33485Codesys · CVSS 9.8 · 1.4% likely

    CWE-122

  18. CODESYS: Multiple products prone to stack based out-of-bounds writeCVE-2022-47386CODESYS · CVSS 8.8 · 1.4% likely

    CWE-787

  19. CODESYS: Multiple products prone to stack based out-of-bounds writeCVE-2022-47385CODESYS · CVSS 8.8 · 1.4% likely

    CWE-787

  20. CODESYS: Multiple products prone to stack based out-of-bounds writeCVE-2022-47388CODESYS · CVSS 8.8 · 1.3% likely

    CWE-787

  21. CODESYS: Multiple products prone to stack based out-of-bounds writeCVE-2022-47387CODESYS · CVSS 8.8 · 1.3% likely

    CWE-787

  22. CODESYS: Multiple products prone to stack based out-of-bounds writeCVE-2022-47384CODESYS · CVSS 8.8 · 1.3% likely

    CWE-787

  23. CODESYS: Multiple products prone to stack based out-of-bounds writeCVE-2022-47383CODESYS · CVSS 8.8 · 1.3% likely

    CWE-787

  24. CODESYS: Multiple products prone to stack based out-of-bounds writeCVE-2022-47382CODESYS · CVSS 8.8 · 1.3% likely

    CWE-787

  25. CODESYS: Multiple products prone to stack based out-of-bounds writeCVE-2022-47381CODESYS · CVSS 8.8 · 1.3% likely

    CWE-787

  26. CODESYS: Multiple products prone to out-of-bounds writeCVE-2022-47380CODESYS · CVSS 8.8 · 1.3% likely

    CWE-787

exploited in the wildcheck availableringed, named or not: CyberSIXT has reported on it

Zoom in on the map and the dots under the middle of it are named where they are.

Data as of 2026-11-15. CVE List through 2026-11-15 · EPSS of 2026-11-15 · CISA KEV checked 2026-11-15. Sources: the CVE List, CISA KEV, EPSS, NVD, nuclei templates and public bug bounty data.