CVE-2026-76992

The CODESYS Gateway Client allocates memory based on a size field in a gateway response without enforcing an appropriate upper limit. An unauthenticated remote attacker controlling a malicious gateway can exploit this behavior to trigger excessive memory consumption, resulting in a denial-of-service condition thus leading to a total loss of availablity.

CVSS v3 7.5 HIGH

7.5^/10

CVSS v3 : HIGH

Vector :

Exploitability : 3.9 / Impact : 3.6

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction NONE

Confidentiality Impact NONE

Integrity Impact NONE

Availability Impact HIGH

Scope UNCHANGED

References

Link	Resource
https://www.certvde.com/en/advisories/VDE-2026-094/

Configurations

No configuration.

History

30 Sep 2026, 11:16

Type	Values Removed	Values Added
New CVE

Information

Published : 2026-09-30 11:16

Updated : 2026-09-30 19:57

NVD link : CVE-2026-76992

Mitre link : CVE-2026-76992

CVE.ORG link : CVE-2026-76992

JSON object : View

Products Affected

No product.

CWE

CWE-770

Allocation of Resources Without Limits or Throttling

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