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CVE-2023-1150

WAGO: Series 750-3x/-8x prone to MODBUS server DoS

HIGH

7.5

CVSS Score

Published: June 26, 2023 at 06:19 AM UTC

Updated: June 17, 2026 at 05:27 AM UTC

39 products affected across 1 vendor750-823 Firmware750-862 Firmware750-891 Firmware

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Severity

HIGH7.5

Exploit prediction

EPSS 0.9%

SSVC

No known exploit

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.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

750-362 /000-001 Firmware · WAGO

95%

v < fw11

Affected range stops below fw11, so it looks safe — our inference, not a vendor statement

wago-750-362-000-001 (same device)

750-362 /040-000 Firmware · WAGO

95%

v < fw11

Affected range stops below fw11, so it looks safe — our inference, not a vendor statement

wago-750-362-040-000 (same device)

750-362 Firmware · WAGO

95%

v < fw11

Affected range stops below fw11, so it looks safe — our inference, not a vendor statement

wago-750-362 (same device)

750-363 /040-000 Firmware · WAGO

95%

v < fw11

Affected range stops below fw11, so it looks safe — our inference, not a vendor statement

wago-750-363-040-000 (same device)

750-363 Firmware · WAGO

95%

v < fw11

Affected range stops below fw11, so it looks safe — our inference, not a vendor statement

wago-750-363 (same device)

750-364 /040-010 Firmware · WAGO

95%

v < fw11

Affected range stops below fw11, so it looks safe — our inference, not a vendor statement

wago-750-364-040-010 (same device)

750-365 /040-010 Firmware · WAGO

95%

v < fw11

Affected range stops below fw11, so it looks safe — our inference, not a vendor statement

wago-750-365-040-010 (same device)

750-823 Firmware · WAGO

95%

v ≤ FW10v < fw11

Affected range stops below fw11, so it looks safe — our inference, not a vendor statement

wago-750-823 (same device)

750-832 /000-002 Firmware · WAGO

95%

v < fw11

Affected range stops below fw11, so it looks safe — our inference, not a vendor statement

wago-750-832-000-002 (same device)

750-832 Firmware · WAGO

95%

v ≤ FW10v < fw11

Affected range stops below fw11, so it looks safe — our inference, not a vendor statement

wago-750-832 (same device)

Remediation

No guide yet

No remediation guidance has been written for this CVE yet, and no fixed version or vendor advisory is recorded against it.

References (1)

Third Party Advisory

Source: [email protected]

https://cert.vde.com/en/advisories/VDE-2023-005/

SSVC — Action Prioritization

SSVCNo known exploitAutomatablePartial impact

SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.

CVSS

7.5HIGHCERTVDE

Attack Vector: NETWORK
Complexity: LOW
Privileges: NONE
User Interaction: NONE
Scope: UNCHANGED
Confidentiality: NONE
Integrity: NONE
Availability: HIGH

Vector?

Quick Info

StatusMODIFIED

CWE

CWE-772

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