CVE-2023-1620
mediumpriority · track · 20EPSS 0.009 · 58 %ileDEEURUUSEPSS · scored 2026-10-27
Multiple WAGO devices in multiple versions may allow an authenticated remote attacker with high privileges to DoS the device by sending a specifically crafted packet to the CODESYS V2 runtime.
remediations
Vendor fix, mitigation, or workaround guidance, as published by each source.
A vendor fix is available.
- Fixedwago_psirt
We recommend all affected users to update to the firmware version listed below: ## PFC200 Family | Order No. | Firmware Version | |-------------------------|------------------| | 750-8202/xxx-xxx | FW 22 Patch 2 | | 750-8203/xxx-xxx | FW 22 Patch 2 | | 750-8204/xxx-xxx | FW 22 Patch 2 | | 750-8206/xxx-xxx | FW 22 Patch 2 | | 750-8207/xxx-xxx | FW 22 Patch 2 | | 750-8208/xxx-xxx | FW 22 Patch 2 | | 750-8210/xxx-xxx | FW 22 Patch 2 | | 750-8211/xxx-xxx | FW 22 Patch 2 | | 750-8212/xxx-xxx | FW 22 Patch 2 | | 750-8213/xxx-xxx | FW 22 Patch 2 | | 750-8214/xxx-xxx | FW 22 Patch 2 | | 750-8216/xxx-xxx | FW 22 Patch 2 | | 750-8217/xxx-xxx | FW 22 Patch 2 | ## Ethernet Controller 4th Generation Family | Order No. | Firmware Version | |-------------------------|------------------| | 750-823 | FW 11 | | 750-332 | FW 11 | | 750-832/xxx-xxx | FW 11 | | 750-862 | FW 11 | | 750-890/xxx-xxx | FW 11 | | 750-891 | FW 11 | | 750-893 | FW 11 | ## Ethernet Controller 3rd Generation Family | Order No. | Firmware Version | |-------------------------|----------------------------------------| | 750-331 | FW 17 (after BACnet certification) | | 750-829 | FW 17 (after BACnet certification) | | 750-831/xxx-xxx | FW 17 (after BACnet certification) | | 750-852 | FW 17 (already available) | | 750-880/xxx-xxx | FW 17 (after BACnet certification) | | 750-881 | FW 17 (after BACnet certification) | | 750-882 | FW 17 (after BACnet certification) | | 750-885/xxx-xxx | FW 17 (after BACnet certification) | | 750-889 | FW 17 (after BACnet certification) |
- Mitigationwago_psirt
If the PLC runtime is running, but you do not need it, you can deactivate the plc runtime programming port over the product settings in the web-based management. You can find this option under "Configuration > PLC Runtime Services > CODESYS 2 > communication enabled". As general security measures strongly WAGO recommends: 1. Use general security best practices to protect systems from local and network attacks. 2. Do not allow direct access to the device from untrusted networks. 3. Update to the latest firmware according to the table in chapter solutions. 4. Industrial control systems (ICS) should not be directly accessible from the Internet, but should be protected by consistently applying the defense-in-depth strategy. The BSI provides general information on securing ICS in the ICS Compendium (https://www.bsi.bund.de/SharedDocs/Downloads/EN/BSI/ICS/ICS-Security_compendium.pdf).
cvss
Technical severity, 0–10. One row per scoring source.
base score 0–10 · higher = more severe · hover a vector to decode
ssvc
A stakeholder decision — act, attend, or track — from exploitation and impact.
weaknesses
The CWE weakness classes this flaw belongs to.
affected products (218)
Products and version ranges known to be affected.
advisories (1)
Vendor and ecosystem advisories describing this.
- VDE-2023-006WAGO: Controller with CODESYS 2.3 Runtime Denial-of-Service2023-06-25csaf · wago_psirtDE
An authenticated attacker can send a malformed packet to trigger a device crash via the CODESYS V2 runtime commands parsing. Update: 08.07.2024 release date of the updates has been changed.
also known as (4)
Other names and identifiers for this entity.
sources
Which sources assert this record, and when.
references (5)
External citations — patches, advisories, analysis.
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