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Vendor advisorySeverity 8.3 high
SSA-545643: Multiple Vulnerabilities in KACO Blueplanet Inverters
SSA-545643 · Siemens · May 12, 2026
Summary
KACO blueplanet Inverters contain multiple vulnerabilities that could allow an attacker to derive the credentials from the devices serial number and misuse them to gain unauthorized access.
KACO new energy GmbH has released new versions for several affected products and recommends to update to the latest versions. KACO new energy GmbH is preparing further fix versions and recommends countermeasures for products where fixes are not, or not yet available.
From Siemens (vendor's own words, quoted), quoted as published. Check the source before acting.
What to do
Currently no fix is planned
Currently no fix is available
Update to V3.91 or later version
Update to V3.92 or later version
Vendor fix or mitigation, quoted from the advisory.
Each CVE in this advisory
| CVE | Severity | Known exploited | Exploit likelihood |
|---|---|---|---|
| CVE-2025-40946 | 8.3 high | No | 0.2% |
| CVE-2026-41125 | 6.0 medium | No | 0.2% |
Severity from the advisory (CVSS), known exploitation from CISA's catalog, exploit likelihood from EPSS (next 30 days).
Affected products
| Vendor | Product |
|---|---|
| Siemens | blueplanet 100 NX3 M8 |
| Siemens | blueplanet 100 TL3 GEN2 |
| Siemens | blueplanet 105 TL3 |
| Siemens | blueplanet 105 TL3 GEN2 |
| Siemens | blueplanet 110 TL3 |
| Siemens | blueplanet 125 NX3 M10 |
| Siemens | blueplanet 125 TL3 |
| Siemens | blueplanet 125 TL3 GEN2 |
| Siemens | blueplanet 137 TL3 |
| Siemens | blueplanet 150 TL3 |
| Siemens | blueplanet 150 TL3 GEN2 |
| Siemens | blueplanet 155 TL3 |
| Siemens | blueplanet 155 TL3 GEN2 |
| Siemens | blueplanet 165 TL3 |
| Siemens | blueplanet 165 TL3 GEN2 |
| Siemens | blueplanet 25.0 NX3-33.0 NX3 |
| Siemens | blueplanet 3.0 NX3-20.0 NX3 |
| Siemens | blueplanet 3.0 TL3-60.0 TL3 |
| Siemens | blueplanet 3.0-5.0 NX1 |
| Siemens | blueplanet 360 NX3 M6 |
| Siemens | blueplanet 50.0 NX3-60.0 NX3 |
| Siemens | blueplanet 87.0 TL3 |
| Siemens | blueplanet 87.0 TL3 GEN2 |
| Siemens | blueplanet 92.0 TL3 |
| Siemens | blueplanet 92.0 TL3 GEN2 |
| Siemens | blueplanet gridsave 110 TL3-S |
| Siemens | blueplanet gridsave 137 TL3-S |
| Siemens | blueplanet gridsave 92.0 TL3-S |
| Siemens | blueplanet hybrid 10.0 TL3 |
| Siemens | blueplanet hybrid 6.0 NH3-12.0 NH3 |
Why it's on these mode pages
- Maritime: Vendor table: Siemens (industrial control makers used in every mode, all modes) (matched by rule)
- Pipeline: Vendor table: Siemens (industrial control makers used in every mode, all modes) (matched by rule)
- Freight rail: Vendor table: Siemens (industrial control makers used in every mode, all modes) (matched by rule)
- Passenger rail and transit: Vendor table: Siemens (industrial control makers used in every mode, all modes) (matched by rule)
- Highway and motor carrier: Vendor table: Siemens (industrial control makers used in every mode, all modes) (matched by rule)
- Postal and parcel: Vendor table: Siemens (industrial control makers used in every mode, all modes) (matched by rule)
Change history
- May 12, 2026: Publication Date
- May 29, 2026: Name of blueplanet gridsave 92.0 TL3-S was updated to blueplanet gridsave 92.0 TL3-S, Name of blueplanet gridsave 137 TL3-S was updated to blueplanet gridsave 137 TL3-S, Name of blueplanet gridsave 110 TL3-S was updated to blueplanet gridsave 110 TL3-S and Name of blueplanet 125 NX3 M11 was updated to blueplanet 125 NX3 M10
- October 13, 2026: Added fix (v3.92) for blueplanet gridsave 92.0-137 TL3-S and for blueplanet 3.0 87.0 TL3 - 165 TL3
- November 9, 2026: First collected by Watch
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