Vulnerability details
CVE-2025-40771
Siemens SIMATIC CP 1542SP-1Siemens SIMATIC CP 1542SP-1 IRCSiemens SIMATIC CP 1543SP-1Siemens SIPLUS ET 200SP CP 1542SP-1 IRC TX RAILSiemens SIPLUS ET 200SP CP 1543SP-1 ISECSiemens SIPLUS ET 200SP CP 1543SP-1 ISEC TX RAIL
CVSS 4.0
9.3Critical
Official description
A vulnerability has been identified in SIMATIC CP 1542SP-1 (6GK7542-6UX00-0XE0) (All versions < V2.4.24), SIMATIC CP 1542SP-1 IRC (6GK7542-6VX00-0XE0) (All versions < V2.4.24), SIMATIC CP 1543SP-1 (6GK7543-6WX00-0XE0) (All versions < V2.4.24), SIPLUS ET 200SP CP 1542SP-1 IRC TX RAIL (6AG2542-6VX00-4XE0) (All versions < V2.4.24), SIPLUS ET 200SP CP 1543SP-1 ISEC (6AG1543-6WX00-7XE0) (All versions < V2.4.24), SIPLUS ET 200SP CP 1543SP-1 ISEC TX RAIL (6AG2543-6WX00-4XE0) (All versions < V2.4.24). Affected devices do not properly authenticate configuration connections. This could allow an unauthenticated remote attacker to access the configuration data.
CVSS scores
| Score | Version | Source | Vector |
|---|---|---|---|
| 9.3Critical | 4.0 | CVEProject cvelistV5 (CNA) (siemens) | CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N |
| 9.8Critical | 3.1 | CVEProject cvelistV5 (CNA) (siemens) | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H |
Affected products
| Vendor | Product | Versions | Source |
|---|---|---|---|
| Siemens | SIMATIC CP 1542SP-1 | v < V2.4.24 | CVEProject cvelistV5 (CNA) |
| Siemens | SIMATIC CP 1542SP-1 IRC | v < V2.4.24 | CVEProject cvelistV5 (CNA) |
| Siemens | SIMATIC CP 1543SP-1 | v < V2.4.24 | CVEProject cvelistV5 (CNA) |
| Siemens | SIPLUS ET 200SP CP 1542SP-1 IRC TX RAIL | v < V2.4.24 | CVEProject cvelistV5 (CNA) |
| Siemens | SIPLUS ET 200SP CP 1543SP-1 ISEC | v < V2.4.24 | CVEProject cvelistV5 (CNA) |
| Siemens | SIPLUS ET 200SP CP 1543SP-1 ISEC TX RAIL | v < V2.4.24 | CVEProject cvelistV5 (CNA) |
References and advisories
1
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Details
- Published
- 2025-10-14
- Last updated
- 2025-10-14
- State
- Published
- Assigner (CNA)
- siemens
Exploit prediction (EPSS)
0.52%
Probability of exploitation in 30 days
44.9%
Percentile (among all CVEs)
SSVC assessment (CISA)
- Automatable
- No
- Exploitation
- None
- Technical impact
- Partial
Weaknesses (CWE)
- CWE-306Missing Authentication for Critical Function