title: WAGO: Series 750-3x/-8x prone to MODBUS server DoS
description: Uncontrolled resource consumption in Series WAGO 750-3x/-8x products may allow an unauthenticated remote attacker to DoS the MODBUS server with specially crafted packets.
problem types: CWE-400 Uncontrolled Resource Consumption
affected:
{
defaultStatus: unaffected
product: 750-332
vendor: WAGO
versions:
lessThanOrEqual: FW10, status: affected, version: 0, versionType: semver
}
{
defaultStatus: unaffected
product: 750-362/xxx-xxx
vendor: WAGO
versions:
lessThanOrEqual: FW10, status: affected, version: 0, versionType: semver
}
{
defaultStatus: unaffected
product: 750-363/xxx-xxx
vendor: WAGO
versions:
lessThanOrEqual: FW10, status: affected, version: 0, versionType: semver
}
{
defaultStatus: unaffected
product: 750-364/xxx-xxx
vendor: WAGO
versions:
lessThanOrEqual: FW10, status: affected, version: 0, versionType: semver
}
{
defaultStatus: unaffected
product: 750-365/xxx-xxx
vendor: WAGO
versions:
lessThanOrEqual: FW10, status: affected, version: 0, versionType: semver
}
{
defaultStatus: unaffected
product: 750-823
vendor: WAGO
versions:
lessThanOrEqual: FW10, status: affected, version: 0, versionType: semver
}
{
defaultStatus: unaffected
product: 750-832/xxx-xxx
vendor: WAGO
versions:
lessThanOrEqual: FW10, status: affected, version: 0, versionType: semver
}
{
defaultStatus: unaffected
product: 750-862
vendor: WAGO
versions:
lessThanOrEqual: FW10, status: affected, version: 0, versionType: semver
}
{
defaultStatus: unaffected
product: 750-890/xxx-xxx
vendor: WAGO
versions:
lessThanOrEqual: FW10, status: affected, version: 0, versionType: semver
}
{
defaultStatus: unaffected
product: 750-891
vendor: WAGO
versions:
lessThanOrEqual: FW10, status: affected, version: 0, versionType: semver
}
{
defaultStatus: unaffected
product: 750-893
vendor: WAGO
versions:
lessThanOrEqual: FW10, status: affected, version: 0, versionType: semver
}
metrics:
cvssV3_1: [
attackComplexity: LOW
attackVector: NETWORK
availabilityImpact: HIGH
baseScore: 7.5
baseSeverity: HIGH
confidentialityImpact: NONE
integrityImpact: NONE
privilegesRequired: NONE
scope: UNCHANGED
userInteraction: NONE
vectorString: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
version: 3.1
]
format: CVSS
scenarios: GENERAL