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TI-2019-03536 Aliases CVE-2019-5075GHSA-8c7x-5xg2-cr7x

Out-of-bounds write in WAGO PFC200

Priority MEDIUM 49CWE-787Published · Updated

Key facts

Attack vector
Network
Privileges required
None
User interaction
None
Attack complexity
Low
Impact type
Code execution
Confidentiality · integrity · availability
High · High · High
Fix status
No fix listed

Attack profile from CVSS 3.1 · NVD. Fix status from CNA. Impact type from CWE-787 and the CVSS impact.

Summary

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.

Why it matters now

EPSS 0.03866 90th percentileScored 2026-11-07
Public exploit Yes 1 exploit referenceTagged by NVD
Fix No fix listed No fixed version in the sources yet

SSVC decision points

Not available: CISA has not published SSVC decision points for this record.

Affected products

VendorProductAffected versionsFixed inStatusSource
—WAGO PFC200Firmware version 03.01.07(13); Firmware version 03.00.39(12)—No fix listedCNA
—WAGO PFC100Firmware version 03.00.39(12)—No fix listedCNA
  • WAGO PFC200 Vendor— Affected Firmware version 03.01.07(13); Firmware version 03.00.39(12) Fixed in — No fix listed CNA
  • WAGO PFC100 Vendor— Affected Firmware version 03.00.39(12) Fixed in — No fix listed CNA

CPE configurations NVD · 5

CPEVersionsRoleVendor
cpe:2.3:o:wago:pfc_200_firmware:03.00.39\(12\):*:*:*:*:*:*:*03.00.39(12)VulnerableWAGO
cpe:2.3:o:wago:pfc_200_firmware:03.01.07\(13\):*:*:*:*:*:*:*03.01.07(13)VulnerableWAGO
cpe:2.3:h:wago:pfc_200:-:*:*:*:*:*:*:*not specified by NVDRunning onWAGO
cpe:2.3:o:wago:pfc_100_firmware:03.00.39\(12\):*:*:*:*:*:*:*03.00.39(12)VulnerableWAGO
cpe:2.3:h:wago:pfc_100:-:*:*:*:*:*:*:*not specified by NVDRunning onWAGO
  • cpe:2.3:o:wago:pfc_200_firmware:03.00.39\(12\):*:*:*:*:*:*:* Versions 03.00.39(12) Vulnerable ·WAGO
  • cpe:2.3:o:wago:pfc_200_firmware:03.01.07\(13\):*:*:*:*:*:*:* Versions 03.01.07(13) Vulnerable ·WAGO
  • cpe:2.3:h:wago:pfc_200:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·WAGO
  • cpe:2.3:o:wago:pfc_100_firmware:03.00.39\(12\):*:*:*:*:*:*:* Versions 03.00.39(12) Vulnerable ·WAGO
  • cpe:2.3:h:wago:pfc_100:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·WAGO

Remediation

No fixed version listed by the sources yet.

Timeline

  1. 2026-10-02 Threatist record created from CVE-2019-5075
  2. 2026-10-03 Alias added: GHSA-8c7x-5xg2-cr7x
  3. 2026-10-14 EPSS moved to the 90th–95th percentile

References

Exploit 1

  • TI-2019-03542 Out-of-bounds write in WAGO PFC200 CVSS 3.1CRITICAL 9.8
  • TI-2020-10015 OS command injection in WAGO Series PFC 100 CVSS 3.1CRITICAL 10.0
  • TI-2019-03540 Out-of-bounds write in WAGO PFC200 CVSS 3.1CRITICAL 9.8
  • TI-2019-03535 Out-of-bounds write in WAGO PFC200 CVSS 3.1CRITICAL 9.8
  • TI-2019-03541 Missing authentication in WAGO PFC200 CVSS 3.1CRITICAL 9.1
  • TI-2019-03539 Missing authentication in WAGO PFC200 CVSS 3.1CRITICAL 9.1
See all 8 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences