CVE-2019-5075
9.8
CRITICAL · CVSS 3.1 · EPSS 3.9% (pctl 90)
In your normal cycle
Critical by CVSS (9.8), but no sign of active exploitation.
Description
An exploitable stack buffer overflow vulnerability exists in the command line utility getcouplerdetails 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 sent to the iocheckd service "I/O-Check" can cause a stack buffer overflow in the sub-process getcouplerdetails, resulting in code execution. An attacker can send unauthenticated packets to trigger this vulnerability.
Scoring
| CVSS | 9.8 (CRITICAL, v3.1) |
|---|---|
| Vector | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H |
| EPSS | 3.87% — more likely to be exploited than 90% of all CVEs |
| Weakness | CWE-787 |
| On CISA KEV | no |
| Public exploit | none known |
| Published | 2019-12-18 |
| Last modified | 2026-06-17 |
Affected (4)
| Vendor | Product |
|---|---|
| wago | pfc 100 |
| wago | pfc 100 firmware |
| wago | pfc 200 |
| wago | pfc 200 firmware |
References
→ the Explorer · watch your stack · NVD