Improper authentication in WAGO PFC200 Series
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- None
- Attack complexity
- Low
- Impact type
- Security bypass
- Confidentiality · integrity · availability
- High · High · High
- Fix status
- No fix listed
Attack profile from CVSS 3.0 · NVD. Fix status from CNA. Impact type from CWE-287.
Summary
An Improper Authentication issue was discovered in WAGO PFC200 Series 3S CoDeSys Runtime versions 2.3.X and 2.4.X. An attacker can execute different unauthenticated remote operations because of the CoDeSys Runtime application, which is available via network by default on Port 2455. An attacker could execute some unauthenticated commands such as reading, writing, or deleting arbitrary files, or manipulate the PLC application during runtime by sending specially-crafted TCP packets to Port 2455.
Why it matters now
SSVC decision points
Not available: CISA has not published SSVC decision points for this record.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| — | WAGO PFC200 Series | WAGO PFC200 Series | — | No fix listed | CNA |
- WAGO PFC200 Series Vendor— Affected WAGO PFC200 Series Fixed in — No fix listed CNA
CPE configurations NVD · 19
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:o:wago:pfc200_firmware:*:*:*:*:*:*:*:* | before 02.07.07\(10\) | Vulnerable | WAGO |
| cpe:2.3:h:wago:750-8202:-:*:*:*:*:*:*:* | not specified by NVD | Running on | WAGO |
| cpe:2.3:h:wago:750-8202\/025-000:-:*:*:*:*:*:*:* | not specified by NVD | Running on | WAGO |
| cpe:2.3:h:wago:750-8202\/025-001:-:*:*:*:*:*:*:* | not specified by NVD | Running on | WAGO |
| cpe:2.3:h:wago:750-8202\/025-002:-:*:*:*:*:*:*:* | not specified by NVD | Running on | WAGO |
| cpe:2.3:h:wago:750-8202\/040-001:-:*:*:*:*:*:*:* | not specified by NVD | Running on | WAGO |
| cpe:2.3:h:wago:750-8203:-:*:*:*:*:*:*:* | not specified by NVD | Running on | WAGO |
| cpe:2.3:h:wago:750-8203\/025-000:-:*:*:*:*:*:*:* | not specified by NVD | Running on | WAGO |
| cpe:2.3:h:wago:750-8204:-:*:*:*:*:*:*:* | not specified by NVD | Running on | WAGO |
| cpe:2.3:h:wago:750-8204\/025-000:-:*:*:*:*:*:*:* | not specified by NVD | Running on | WAGO |
- cpe:2.3:o:wago:pfc200_firmware:*:*:*:*:*:*:*:* Versions before 02.07.07\(10\) Vulnerable ·WAGO
- cpe:2.3:h:wago:750-8202:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·WAGO
- cpe:2.3:h:wago:750-8202\/025-000:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·WAGO
- cpe:2.3:h:wago:750-8202\/025-001:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·WAGO
- cpe:2.3:h:wago:750-8202\/025-002:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·WAGO
- cpe:2.3:h:wago:750-8202\/040-001:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·WAGO
- cpe:2.3:h:wago:750-8203:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·WAGO
- cpe:2.3:h:wago:750-8203\/025-000:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·WAGO
- cpe:2.3:h:wago:750-8204:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·WAGO
- cpe:2.3:h:wago:750-8204\/025-000:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·WAGO
Show 9 more CPE
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:h:wago:750-8206:-:*:*:*:*:*:*:* | not specified by NVD | Running on | WAGO |
| cpe:2.3:h:wago:750-8206\/025-000:-:*:*:*:*:*:*:* | not specified by NVD | Running on | WAGO |
| cpe:2.3:h:wago:750-8206\/025-001:-:*:*:*:*:*:*:* | not specified by NVD | Running on | WAGO |
| cpe:2.3:h:wago:750-8207:-:*:*:*:*:*:*:* | not specified by NVD | Running on | WAGO |
| cpe:2.3:h:wago:750-8207\/025-000:-:*:*:*:*:*:*:* | not specified by NVD | Running on | WAGO |
| cpe:2.3:h:wago:750-8207\/025-001:-:*:*:*:*:*:*:* | not specified by NVD | Running on | WAGO |
| cpe:2.3:h:wago:750-8208:-:*:*:*:*:*:*:* | not specified by NVD | Running on | WAGO |
| cpe:2.3:h:wago:750-8208\/025-000:-:*:*:*:*:*:*:* | not specified by NVD | Running on | WAGO |
| cpe:2.3:h:wago:pfc200:-:*:*:*:*:*:*:* | not specified by NVD | Running on | WAGO |
- cpe:2.3:h:wago:750-8206:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·WAGO
- cpe:2.3:h:wago:750-8206\/025-000:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·WAGO
- cpe:2.3:h:wago:750-8206\/025-001:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·WAGO
- cpe:2.3:h:wago:750-8207:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·WAGO
- cpe:2.3:h:wago:750-8207\/025-000:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·WAGO
- cpe:2.3:h:wago:750-8207\/025-001:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·WAGO
- cpe:2.3:h:wago:750-8208:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·WAGO
- cpe:2.3:h:wago:750-8208\/025-000:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·WAGO
- cpe:2.3:h:wago:pfc200:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·WAGO
Remediation
No fixed version listed by the sources yet.
Timeline
- 2026-10-02 Threatist record created from CVE-2018-5459
- 2026-10-03 Alias added: GHSA-qff4-8m6q-cpvp
References
More WAGO Pfc200 Firmware vulnerabilities
- TI-2023-01594 WAGO: WBM Command Injection in multiple products CVSS 3.1CRITICAL 9.8
- TI-2019-03543 Out-of-bounds write in WAGO PFC200 CVSS 3.1CRITICAL 9.8
- TI-2022-22215 WAGO: Missing Authentication for Critical Function CVSS 3.1CRITICAL 9.8
- TI-2019-03617 Insufficient verification of data authenticity in WAGO PFC200 Firmware CVSS 3.1CRITICAL 9.1
- TI-2019-03616 An exploitable improper host validation vulnerability exists in the Cloud Connectivity… CVSS 3.1CRITICAL 9.1
- TI-2022-22213 WAGO: Missing Authentication for Critical Function CVSS 3.1CRITICAL 9.8
Sources
- CVE-2018-5459 · CVE Program
- CVE-2018-5459 · NVD
- FIRST EPSS
- GHSA-qff4-8m6q-cpvp · GitHub Advisory Database · CC BY 4.0
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