CVE-2019-5077
Critical
Description
An exploitable denial-of-service vulnerability exists in the iocheckd service ‘’I/O-Chec’’ functionality of WAGO PFC 200 Firmware versions 03.01.07(13) and 03.00.39(12), and WAGO PFC 100 Firmware version 03.00.39(12). A specially crafted set of packets can cause a denial of service, resulting in the device entering an error state where it ceases all network communications. An attacker can send unauthenticated packets to trigger this vulnerability.
SeverityCritical
CVSS9.1
Exploit probability—
ProductWago Pfc 200 Firmware
PublishedDec 18, 2019
First seenDec 18, 2019
How to fix
Sources list no fixed version or patch link for this vulnerability.
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| wago pfc_200_firmware | 03.00.39\(12\), 03.01.07\(13\) | — |
| wago pfc_100_firmware | 03.00.39\(12\) | — |
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