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Fencer Vulns
high 8.3

CVE-2025-40946 json

A vulnerability has been identified in blueplanet 100 NX3 M8 (All versions), blueplanet 100 TL3 GEN2 (All versions < V6.1.4.9), blueplanet…

published 2026-05-12 5 mo ago modified 2026-10-23 16 d ago also EUVD-2025-209779

cvss
8.3
version 3.1, CNA
cisa kev
Not listed
not in CISA's catalog
epss
0.2%
EPSS 0.2% chance of exploitation in 30 days, percentile 8%
public exploits
0
none known

Summary

A vulnerability has been identified in blueplanet 100 NX3 M8 (All versions), blueplanet 100 TL3 GEN2 (All versions < V6.1.4.9), blueplanet 105 TL3 (All versions < V3.92), blueplanet 105 TL3 GEN2 (All versions < V6.1.4.9), blueplanet 110 TL3 (All versions < V3.92), blueplanet 125 NX3 M10 (All versions), blueplanet 125 TL3 (All versions < V3.92), blueplanet 125 TL3 GEN2 (All versions < V6.1.4.9), blueplanet 137 TL3 (All versions < V3.92), blueplanet 150 TL3 (All versions < V3.92), blueplanet 150 TL3 GEN2 (All versions < V6.1.4.9), blueplanet 155 TL3 (All versions < V3.92), blueplanet 155 TL3 GEN2 (All versions < V6.1.4.9), blueplanet 165 TL3 (All versions < V3.92), blueplanet 165 TL3 GEN2 (All versions < V6.1.4.9), blueplanet 3.0 TL3-60.0 TL3 (All versions), blueplanet 87.0 TL3 (All versions < V3.92), blueplanet 87.0 TL3 GEN2 (All versions < V6.1.4.9), blueplanet 92.0 TL3 (All versions < V3.92), blueplanet 92.0 TL3 GEN2 (All versions < V6.1.4.9), blueplanet gridsave 110 TL3-S (All versions < V3.91), blueplanet gridsave 137 TL3-S (All versions < V3.91), blueplanet gridsave 92.0 TL3-S (All versions < V3.91). A CRC16-based algorithm for generating Technical Service credentials could allow an attacker to derive the credentials from the devices serial number and misuse them to gain unauthorized access.

Patch / fix

  • Siemens blueplanet 100 TL3 GEN2 V6.1.4.9
  • Siemens blueplanet 105 TL3 V3.92
  • Siemens blueplanet 105 TL3 GEN2 V6.1.4.9
  • Siemens blueplanet 110 TL3 V3.92
  • Siemens blueplanet 125 TL3 V3.92
  • Siemens blueplanet 125 TL3 GEN2 V6.1.4.9
  • Siemens blueplanet 137 TL3 V3.92
  • Siemens blueplanet 150 TL3 V3.92
  • Siemens blueplanet 150 TL3 GEN2 V6.1.4.9
  • Siemens blueplanet 155 TL3 V3.92
  • Siemens blueplanet 155 TL3 GEN2 V6.1.4.9
  • Siemens blueplanet 165 TL3 V3.92
  • Siemens blueplanet 165 TL3 GEN2 V6.1.4.9
  • Siemens blueplanet 87.0 TL3 V3.92
  • Siemens blueplanet 87.0 TL3 GEN2 V6.1.4.9
  • Siemens blueplanet 92.0 TL3 V3.92
  • Siemens blueplanet 92.0 TL3 GEN2 V6.1.4.9
  • Siemens blueplanet gridsave 110 TL3-S V3.91
  • Siemens blueplanet gridsave 137 TL3-S V3.91
  • Siemens blueplanet gridsave 92.0 TL3-S V3.91

Vendor advisories

What the vendors themselves say about their products: affected, fixed or not affected, and what to do.

cisa ICSA-26-160-02 updated cvss 8.3

Siemens KACO Blueplanet Inverters

  • Siemens blueplanet 3.0 TL3-60.0 TL3
    affected: no fix planned
  • Siemens blueplanet 87.0 TL3
    affected: no fix available
  • Siemens blueplanet 87.0 TL3 GEN2 < 6.1.4.9
    affected: fixed in V6.1.4.9 kaco-newenergy.com
  • Siemens blueplanet 92.0 TL3
    affected: no fix available
  • Siemens blueplanet 92.0 TL3 GEN2 < 6.1.4.9
    affected: fixed in V6.1.4.9 kaco-newenergy.com
  • Siemens blueplanet 100 NX3 M8
    affected: no fix available
  • Siemens blueplanet 100 TL3 GEN2 < 6.1.4.9
    affected: fixed in V6.1.4.9 kaco-newenergy.com
  • Siemens blueplanet 105 TL3
    affected: no fix available
show 11 more
  • Siemens blueplanet 105 TL3 GEN2 < 6.1.4.9
    affected: fixed in V6.1.4.9 kaco-newenergy.com
  • Siemens blueplanet 110 TL3 Siemens blueplanet 125 NX3 M11 Siemens blueplanet 125 TL3
    affected: no fix available
  • Siemens blueplanet 125 TL3 GEN2 < 6.1.4.9
    affected: fixed in V6.1.4.9 kaco-newenergy.com
  • Siemens blueplanet 137 TL3 Siemens blueplanet 150 TL3
    affected: no fix available
  • Siemens blueplanet 150 TL3 GEN2 < 6.1.4.9
    affected: fixed in V6.1.4.9 kaco-newenergy.com
  • Siemens blueplanet 155 TL3
    affected: no fix available
  • Siemens blueplanet 155 TL3 GEN2 < 6.1.4.9
    affected: fixed in V6.1.4.9 kaco-newenergy.com
  • Siemens blueplanet 165 TL3
    affected: no fix available
  • Siemens blueplanet 165 TL3 GEN2 < 6.1.4.9
    affected: fixed in V6.1.4.9 kaco-newenergy.com
  • Siemens blueplanet gridsafe 92.0 TL3-S < 3.91 Siemens blueplanet gridsafe 110 TL3-S < 3.91 Siemens blueplanet gridsafe 137 TL3-S < 3.91
    affected: fixed in V3.91 kaco-newenergy.com
  • Siemens blueplanet 3.0 NX3-20.0 NX3 Siemens blueplanet 3.0-5.0 NX1 Siemens blueplanet 25.0 NX3-33.0 NX3 Siemens blueplanet 50.0 NX3-60.0 NX3 Siemens blueplanet 360 NX3 M6 Siemens blueplanet hybrid 6.0 NH3-12.0 NH3
    +1 more products
    Siemens blueplanet hybrid 10.0 TL3
    not affected: component not present

Facts from CISA's republication of the vendor's own advisory (CSAF); the linked advisory is the authoritative source. CISA notification · csaf

CISA SSVC

Exploitation
none
Automatable
no
Technical impact
total
Assessed
5 mo ago

Exploit prediction

0.19% chance of exploitation in the next 30 days, higher than 8% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by version score vector
CNA 3.1 8.3 CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:L/I:H/A:H
CNA 4.0 7.2 CVSS:4.0/AV:A/AC:L/AT:N/PR:N/UI:N/VC:L/VI:H/VA:H/SC:N/SI:N/SA:N
CNA 4.0 7.2 CVSS:4.0/AV:A/AC:L/AT:N/PR:N/UI:N/VC:L/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

Affected products

  • 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

Classification

Weakness
  • CWE-321 Use of Hard-coded Cryptographic Key

References

Sources

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.