Answer in brief
CVE-2026-4769 records a Critical severity (CVSS 9.8) vulnerability in Unauthenticated Access to Internal Diagnostic Interface. The current sources do not mark it as known exploited. The current feed maps WAGO/0765-110x/0100-0000 (generic), WAGO/0765-120x/0100-0000 (generic), WAGO/0765-150x/0100-0000 (generic), WAGO/0765-2101/0100-0000 (generic) and additional mapped packages. Check affected ranges and fixed versions before updating.
Analysis pending evidence review
HOL Guard separates source facts from reviewed analysis. See the methodology.
CVSS is 9.8. The current sources do not mark it as known exploited. Treat this as a source-backed prioritization signal, not a statement about your environment.
Analysis status
Analysis pending evidence review
Factual feed record only; HOL analysis is not approved for indexing. Read the methodology.
The current feed maps WAGO/0765-110x/0100-0000 (generic), WAGO/0765-120x/0100-0000 (generic), WAGO/0765-150x/0100-0000 (generic), WAGO/0765-2101/0100-0000 (generic) and additional mapped packages. Check affected ranges and fixed versions before updating.
| Package | Affected range | Fixed version |
|---|---|---|
| WAGO/0765-110x/0100-0000generic | >=1.0.0.0 <1.2.1.100 | 1.2.1.100 |
| WAGO/0765-120x/0100-0000generic | >=1.0.0.0 <1.2.7.100 | 1.2.7.100 |
| WAGO/0765-150x/0100-0000generic | >=1.0.0.0 <1.2.7.103 | 1.2.7.103 |
| WAGO/0765-2101/0100-0000generic | >=1.0.0.0 <1.2.1.102 | 1.2.1.102 |
| WAGO/0765-2102/0100-0000generic | >=1.0.0.0 <1.2.5.101 | 1.2.5.101 |
| WAGO/0765-410x/0100-0000generic | >=1.0.0.0 <1.2.1.100 | 1.2.1.100 |
| WAGO/0765-420x/0100-0000generic | >=1.0.0.0 <1.2.7.100 | 1.2.7.100 |
| WAGO/0765-450x/0100-0000generic | >=1.0.0.0 <1.2.7.103 | 1.2.7.103 |
Published upstream
Jul 13, 2026
Evidence: source:cvelist:source_dates:source-dates:recordSource modified
Jul 13, 2026
Evidence: source:cvelist:source_dates:source-dates:recordFirst seen by HOL
Jul 13, 2026
Certain devices in the WAGO System I/O Field series activate an internal diagnostic capability during the initial startup sequence. This functionality is not formally documented and becomes accessible without authentication for a brief period in the early boot phase. During this window, an unauthenticated remote attacker can gain access to the internal system processes, resulting in full system compromise.
Quoted source text, attributed separately from HOL analysis.
Answer in brief
CVE-2026-4769 records a Critical severity (CVSS 9.8) vulnerability in Unauthenticated Access to Internal Diagnostic Interface. The current sources do not mark it as known exploited. The current feed maps WAGO/0765-110x/0100-0000 (generic), WAGO/0765-120x/0100-0000 (generic), WAGO/0765-150x/0100-0000 (generic), WAGO/0765-2101/0100-0000 (generic) and additional mapped packages. Check affected ranges and fixed versions before updating.
Analysis pending evidence review
HOL Guard separates source facts from reviewed analysis. See the methodology.
CVSS is 9.8. The current sources do not mark it as known exploited. Treat this as a source-backed prioritization signal, not a statement about your environment.
Analysis status
Analysis pending evidence review
Factual feed record only; HOL analysis is not approved for indexing. Read the methodology.
The current feed maps WAGO/0765-110x/0100-0000 (generic), WAGO/0765-120x/0100-0000 (generic), WAGO/0765-150x/0100-0000 (generic), WAGO/0765-2101/0100-0000 (generic) and additional mapped packages. Check affected ranges and fixed versions before updating.
| Package | Affected range | Fixed version |
|---|---|---|
| WAGO/0765-110x/0100-0000generic | >=1.0.0.0 <1.2.1.100 | 1.2.1.100 |
| WAGO/0765-120x/0100-0000generic | >=1.0.0.0 <1.2.7.100 | 1.2.7.100 |
| WAGO/0765-150x/0100-0000generic | >=1.0.0.0 <1.2.7.103 | 1.2.7.103 |
| WAGO/0765-2101/0100-0000generic | >=1.0.0.0 <1.2.1.102 | 1.2.1.102 |
| WAGO/0765-2102/0100-0000generic | >=1.0.0.0 <1.2.5.101 | 1.2.5.101 |
| WAGO/0765-410x/0100-0000generic | >=1.0.0.0 <1.2.1.100 | 1.2.1.100 |
| WAGO/0765-420x/0100-0000generic | >=1.0.0.0 <1.2.7.100 | 1.2.7.100 |
| WAGO/0765-450x/0100-0000generic | >=1.0.0.0 <1.2.7.103 | 1.2.7.103 |
Published upstream
Jul 13, 2026
Evidence: source:cvelist:source_dates:source-dates:recordSource modified
Jul 13, 2026
Evidence: source:cvelist:source_dates:source-dates:recordFirst seen by HOL
Jul 13, 2026
Certain devices in the WAGO System I/O Field series activate an internal diagnostic capability during the initial startup sequence. This functionality is not formally documented and becomes accessible without authentication for a brief period in the early boot phase. During this window, an unauthenticated remote attacker can gain access to the internal system processes, resulting in full system compromise.
Quoted source text, attributed separately from HOL analysis.