Critical severity · published Dec 18, 2019
CVE-2019-5078
An exploitable denial of service vulnerability exists in the iocheckd service "I/O-Check" functionality of WAGO PFC200 Firmware versions 03.01.07(13) and 03.00.39(12), and WAGO…
9.1
CVSS
1.7%
EPSS
No
On KEV
Description
An exploitable denial of service vulnerability exists in the iocheckd service "I/O-Check" functionality of WAGO PFC200 Firmware versions 03.01.07(13) and 03.00.39(12), and WAGO PFC100 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.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:H
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
None
Confidentiality
None
Integrity
High
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)1.7% · higher than 76% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
P1
Pfc 100 Firmware · Wago
03.00.39(12) · source: NVD
P2
Pfc 200 Firmware · Wago
03.00.39(12); 03.01.07(13) · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2019-5078
CVE.org
https://www.cve.org/CVERecord?id=CVE-2019-5078
Third Party Advisory
https://talosintelligence.com/vulnerability_reports/TALOS-2019-0870
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