Stack Buffer Overflow in WAGO PFC200 and PFC100 Firmware
CVE-2019-5074

9.8CRITICAL

Key Information:

Vendor

Wago

Status
Wago Pfc200
Wago Pfc100
Vendor
CVE Published:
18 December 2019

What is CVE-2019-5074?

A stack buffer overflow vulnerability has been identified in the I/O-Check functionality of WAGO PFC200 and PFC100 Firmwares. This flaw allows attackers to send specially crafted packets that can overflow the stack buffer, potentially leading to remote code execution. The vulnerability affects multiple firmware versions, exposing systems to significant security risks if not addressed. Unauthenticated packets can exploit this flaw without requiring any prior authentication, making it a critical concern for network security.

Affected Version(s)

WAGO PFC100 Firmware version 03.00.39(12)

WAGO PFC200 Firmware version 03.01.07(13)

WAGO PFC200 Firmware version 03.00.39(12)

References

https://talosintelligence.com/vulnerability_reports/TALOS...
x_refsource_CONFIRM

CVSS V3.1

Score:
9.8
Severity:
CRITICAL
Confidentiality:
High
Integrity:
High
Availability:
High
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
None
User Interaction:
None
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

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CVE-2019-5074 : Stack Buffer Overflow in WAGO PFC200 and PFC100 Firmware