SiemensCVE-2026-54801
Siemens CPCI85 Central Processing/Communication: authenticated attacker could...
High8.6CVE-2026-54801 · Published 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 contains insufficient validation of authentication credentials when processing administrative account modifications through the web API. This could allow an authenticated attacker to bypass security controls and gain unauthorized elevated privileges.
Affected versions
| Package | Affected | Fixed in |
|---|---|---|
| CPCI85 Central Processing/Communication Product | < V26.20 | V26.20 |
| SICORE Base system Product | < V26.20.0 | V26.20.0 |
Details and references
- CVSS 4.0
- CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
- Severity from
- the vendor (its own CVE record or advisory)
- Weakness
- CWE-620
More Siemens advisories
All Siemens| Date | Advisory | Severity | Fixed in |
|---|---|---|---|
| Jul 14 | Siemens Opcenter X: authentication bypass | Critical10.0 | V2604 |
| Jul 14 | Siemens SIMATIC S7-PLCSIM Advanced: denial of service | Medium6.0 | No fix yet |
| Jul 14 | Siemens COMOS: untrusted search path | High8.5 | V10.4.5.0.2+9 more |
| Jul 9 | Siemens CPCI85 Central Processing/Communication: denial of service | High7.1 | V26.20+1 more |
| Jul 9 | Siemens CPCI85 Central Processing/Communication: code execution | High8.4 | V26.20+1 more |
| Jul 9 | Siemens CPCI85 Central Processing/Communication: insecure default | Medium6.3 | V26.20+1 more |