CVE-2023-35835

Inverter control via persistent open Wi-Fi

Published Jan 23, 2024 · Updated May 30, 2025

Missing Wi-Fi authentication in SolaX Pocket WiFi 3 through 3.001.02 allows physically proximate attackers to access Modbus services. The device leaves its setup access point active without an encryption key after enrollment and exposes an unauthenticated Modbus interface that accepts standard read and write messages. Radio-frequency proximity is sufficient to read or alter inverter data and configuration, with resulting disruption to normal inverter operation.

CVSS severity9.8
Critical
EPSS probability0.51%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Missing Wi-Fi authentication in SolaX Pocket WiFi 3 through 3.001.02 allows physically proximate attackers to access Modbus services. The device leaves its setup access point active without an encryption key after enrollment and exposes an unauthenticated Modbus interface that accepts standard read and write messages. Radio-frequency proximity is sufficient to read or alter inverter data and configuration, with resulting disruption to normal inverter operation.

The record

CVE
CVE-2023-35835
Published
Jan 23, 2024
Updated
May 30, 2025
Vendor
Unknown vendor
Product
Unknown product
Classifications
T0855
Attack vector
adjacent
Privileges
unauthenticated

Timeline

How it unfolded

  1. Jan 23, 2024CVE publishedPublication date reported by the CVE source.
  2. May 30, 2025Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Affected buildAffected product and version details are unavailable.

What conditions does exploitation require?

Attack vectoradjacent
Required privilegesunauthenticated

What is affected?

Affected products and versions are unavailable in this record.

Published CVSS scores

9.8CISA-ADPCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
9.8NIST NVDCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectoradjacent
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

T0855Unauthorized Command Message

Public exploit references

No public exploit references are available in this record.

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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