CVE-2025-41645Network attack vector

Device hijacking via demo-area ownership failure

Published May 13, 2025 · Updated May 13, 2025

Authorization failure in SMA Sunny Portal Classic before 20.02.2025 allows remote attackers to hijack devices through a demo account. The portal's demo-system area grants a demo account control over non-demo devices that users mistakenly added there, without enforcing the devices' ownership boundary. Only devices erroneously placed in the demo area are exposed; attackers can change their parameters and configuration data, with no reported confidentiality or availability impact.

CVSS severity8.6
High
EPSS probability0.40%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Authorization failure in SMA Sunny Portal Classic before 20.02.2025 allows remote attackers to hijack devices through a demo account. The portal's demo-system area grants a demo account control over non-demo devices that users mistakenly added there, without enforcing the devices' ownership boundary. Only devices erroneously placed in the demo area are exposed; attackers can change their parameters and configuration data, with no reported confidentiality or availability impact.

The record

CVE
CVE-2025-41645
Published
May 13, 2025
Updated
May 13, 2025
Vendor
SMA Solar Technology AG
Product
Sunny Portal Classic
Classifications
CWE-669, T1190
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. May 13, 2025CVE publishedPublication date reported by the CVE source.
  2. May 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=0 <20.02.2025

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

SMA Solar Technology AG · Sunny Portal Classicversion=0 <20.02.2025

Published CVSS scores

8.6CERT@VDECVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:H/A:N

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 9, 2026Sep 15, 2026
Latest reporting daySep 15, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-669Incorrect Resource Transfer Between Spheres
T1190Exploit Public-Facing Application

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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