Critical severity · published Dec 18, 2019
CVE-2019-5074
An exploitable stack buffer overflow vulnerability exists in the iocheckd service ''I/O-Check'' functionality of WAGO PFC200 Firmware version 03.01.07(13), WAGO PFC200 Firmware…
9.8
CVSS
3.3%
EPSS
No
On KEV
Description
An exploitable stack buffer overflow vulnerability exists in the iocheckd service ''I/O-Check'' functionality of WAGO PFC200 Firmware version 03.01.07(13), WAGO PFC200 Firmware version 03.00.39(12) and WAGO PFC100 Firmware version 03.00.39(12). A specially crafted set of packets can cause a stack buffer overflow, resulting in code execution. 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:H/I:H/A:H
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
None
Confidentiality
High
Integrity
High
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)3.3% · higher than 88% 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
03.01.07(13) · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2019-5074
CVE.org
https://www.cve.org/CVERecord?id=CVE-2019-5074
Third Party Advisory
https://talosintelligence.com/vulnerability_reports/TALOS-2019-0863
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