title: CODESYS Runtime System prone to heap based buffer overflow
description: In multiple CODESYS products, a low privileged remote attacker may craft a request, which may cause a heap-based buffer overflow, resulting in a denial-of-service condition or memory overwrite. User interaction is not required.
problem types: CWE-122 Heap-based Buffer Overflow
affected:
{
platforms: 32 bit
product: Runtime Toolkit
vendor: CODESYS
versions:
lessThan: V2.4.7.57, status: affected, version: V2, versionType: custom
}
{
product: PLCWinNT
vendor: CODESYS
versions:
lessThan: V2.4.7.57, status: affected, version: V2, versionType: custom
}
metrics:
cvssV3_1: [
attackComplexity: LOW
attackVector: NETWORK
availabilityImpact: HIGH
baseScore: 8.8
baseSeverity: HIGH
confidentialityImpact: HIGH
integrityImpact: HIGH
privilegesRequired: LOW
scope: UNCHANGED
userInteraction: NONE
vectorString: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
version: 3.1
]