Skip to content
Fencer Vulns
high 8.1

CVE-2025-46414 json

EG4 Electronics EG4 Inverters Improper Restriction of Excessive Authentication Attempts

published 2025-08-08 15 mo ago modified 2026-06-17 4 mo ago also EUVD-2025-23992

cvss
8.1
version 3.1, CNA
cisa kev
Not listed
not in CISA's catalog
epss
0.4%
EPSS 0.4% chance of exploitation in 30 days, percentile 32%
public exploits
0
none known

Summary

The affected product does not limit the number of attempts for inputting the correct PIN for a registered product, which may allow an attacker to gain unauthorized access using brute-force methods if they possess a valid device serial number. The API provides clear feedback when the correct PIN is entered. This vulnerability was patched in a server-side update on April 6, 2025.

Vendor advisories

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

cisa ICSA-25-219-07 updated cvss 8.1

EG4 Electronics EG4 Inverters (Update B)

  • EG4 Electronics EG4 12kPV EG4 Electronics EG4 18kPV EG4 Electronics EG4 6000XP EG4 Electronics EG4 12000XP EG4 Electronics EG4 Flex 18 EG4 Electronics EG4 Flex 21
    +1 more products
    EG4 Electronics EG4 GridBoss
    affected: mitigation “CVE-2025-46414: EG4 deployed a fix on April 6, 2025. No action is required from users.” eg4electronics.com

From CISA ICS and IT advisories (CSAF, https://github.com/cisagov/CSAF), a U.S. Government work; changed: reduced to products, statuses and remediations. CISA notification · csaf

CISA SSVC

Exploitation
none
Automatable
no
Technical impact
partial
Assessed
15 mo ago

Exploit prediction

0.39% chance of exploitation in the next 30 days, higher than 32% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by version score vector
CNA 3.1 8.1 CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
CNA 4.0 9.2 CVSS:4.0/AV:N/AC:H/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N
CNA 4.0 9.2 CVSS:4.0/AV:N/AC:H/AT:N/PR:N/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

Affected products

  • EG4 Electronics EG4 12kPV
  • EG4 Electronics EG4 18kPV
  • EG4 Electronics EG4 Flex 21
  • EG4 Electronics EG4 Flex 18
  • EG4 Electronics EG4 6000XP
  • EG4 Electronics EG4 12000XP
  • EG4 Electronics EG4 GridBoss

Classification

Weakness
  • CWE-307 Improper Restriction of Excessive Authentication Attempts

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.