CVE-2025-36753

Physical debug access via default-enabled SWD interface

Published Dec 13, 2025 · Updated Dec 13, 2025

Authentication bypass in Growatt ShineLan-X 3.6.0.0 through 3.6.0.2 allows physically proximate attackers to access SWD debugging. The dongle exposes its hardware Serial Wire Debug interface by default without requiring authentication, allowing direct debugger control. Physical access to SWD is required; successful access exposes stored secrets and domains and grants debugger-level control over the device.

CVSS severity8.6
High
EPSS probability0.32%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Authentication bypass in Growatt ShineLan-X 3.6.0.0 through 3.6.0.2 allows physically proximate attackers to access SWD debugging. The dongle exposes its hardware Serial Wire Debug interface by default without requiring authentication, allowing direct debugger control. Physical access to SWD is required; successful access exposes stored secrets and domains and grants debugger-level control over the device.

The record

CVE
CVE-2025-36753
Published
Dec 13, 2025
Updated
Dec 13, 2025
Vendor
Growatt
Product
ShineLan-X
Classifications
CWE-290, CAPEC-233
Attack vector
physical
Privileges
unauthenticated

Timeline

How it unfolded

  1. Dec 13, 2025CVE publishedPublication date reported by the CVE source.
  2. Dec 13, 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?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=3.6.0.0 <=3.6.0.2

What conditions does exploitation require?

Attack vectorphysical
Required privilegesunauthenticated

What is affected?

Growatt · ShineLan-Xversion=3.6.0.0 <=3.6.0.2

Published CVSS scores

9.8National Vulnerability DatabaseCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
8.6Dutch Institute for Vulnerability DisclosureCVSS:4.0/AV:P/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA: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.

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No observations available

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

Weakness, pattern, technique

CWE-290Authentication Bypass by Spoofing
CAPEC-233Privilege Escalation

Public exploit references

No public exploit references are available in this record.

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Technologies

Your stack

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Your stack

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