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Fencer Vulns
critical 10.0

CVE-2020-12522 json

Command Injection Vulnerability in I/O-Check Service of WAGO PFC100, PFC200 and Touch Panel 600 Series with firmware versions <=FW10

published 2020-12-17 5 y ago modified 2026-06-17 4 mo ago also EUVD-2020-4824

cvss
10.0
version 3.1, CNA
cisa kev
Not listed
not in CISA's catalog
epss
3.1%
EPSS 3.1% chance of exploitation in 30 days, percentile 87%
public exploits
0
none known

Summary

The reported vulnerability allows an attacker who has network access to the device to execute code with specially crafted packets in WAGO Series PFC 100 (750-81xx/xxx-xxx), Series PFC 200 (750-82xx/xxx-xxx), Series Wago Touch Panel 600 Standard Line (762-4xxx), Series Wago Touch Panel 600 Advanced Line (762-5xxx), Series Wago Touch Panel 600 Marine Line (762-6xxx) with firmware versions <=FW10.

Exploit prediction

3.05% chance of exploitation in the next 30 days, higher than 87% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by version score vector
CNA 3.1 10.0 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H
NVD 3.1 9.8 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
NVD 2.0 10.0 AV:N/AC:L/Au:N/C:C/I:C/A:C

Affected products

  • WAGO Series PFC 100 (750-81xx/xxx-xxx)
  • WAGO Series PFC 200 (750-82xx/xxx-xxx)
  • WAGO Series Wago Touch Panel 600 Standard Line (762-4xxx)
  • WAGO Series Wago Touch Panel 600 Advanced Line (762-5xxx)
  • WAGO Series Wago Touch Panel 600 Marine Line (762-6xxx)

Classification

Weakness
  • CWE-78 Improper Neutralization of Special Elements used in an OS Command

References

Sources

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.