Answer in brief
CVE-2026-54800 records a Medium severity (CVSS 4.8) vulnerability in CISA ADP Vulnrichment. The current sources do not mark it as known exploited. The current feed maps Siemens/CPCI85 Central Processing/Communication (generic), Siemens/SICORE Base system (generic). 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 4.8. 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 Siemens/CPCI85 Central Processing/Communication (generic), Siemens/SICORE Base system (generic). Check affected ranges and fixed versions before updating.
| Package | Affected range | Fixed version |
|---|---|---|
| Siemens/CPCI85 Central Processing/Communicationgeneric | >=0 <V26.20 | V26.20 |
| Siemens/SICORE Base systemgeneric | >=0 <V26.20.0 | V26.20.0 |
Published upstream
Jul 9, 2026
Evidence: source:cvelist:source_dates:source-dates:recordSource modified
Jul 9, 2026
Evidence: source:cvelist:source_dates:source-dates:recordFirst seen by HOL
Jul 9, 2026
A vulnerability has been identified in CPCI85 Central Processing/Communication (All versions < V26.20), SICORE Base system (All versions < V26.20.0). The affected application ships with a default configuration that disables all OPC UA security mechanisms. This could allow an attacker to gain unauthorized access and control over critical system functions.
Quoted source text, attributed separately from HOL analysis.
Answer in brief
CVE-2026-54800 records a Medium severity (CVSS 4.8) vulnerability in CISA ADP Vulnrichment. The current sources do not mark it as known exploited. The current feed maps Siemens/CPCI85 Central Processing/Communication (generic), Siemens/SICORE Base system (generic). 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 4.8. 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 Siemens/CPCI85 Central Processing/Communication (generic), Siemens/SICORE Base system (generic). Check affected ranges and fixed versions before updating.
| Package | Affected range | Fixed version |
|---|---|---|
| Siemens/CPCI85 Central Processing/Communicationgeneric | >=0 <V26.20 | V26.20 |
| Siemens/SICORE Base systemgeneric | >=0 <V26.20.0 | V26.20.0 |
Published upstream
Jul 9, 2026
Evidence: source:cvelist:source_dates:source-dates:recordSource modified
Jul 9, 2026
Evidence: source:cvelist:source_dates:source-dates:recordFirst seen by HOL
Jul 9, 2026
A vulnerability has been identified in CPCI85 Central Processing/Communication (All versions < V26.20), SICORE Base system (All versions < V26.20.0). The affected application ships with a default configuration that disables all OPC UA security mechanisms. This could allow an attacker to gain unauthorized access and control over critical system functions.
Quoted source text, attributed separately from HOL analysis.