CVE-2025-26857: Growatt Cloud portal Authorization Bypass Through User-Controlled Key
First published: Tue Apr 15 2025(Updated: )
Unauthenticated attackers can rename arbitrary devices of arbitrary users (i.e., EV chargers).
Credit: ics-cert@hq.dhs.gov
| Affected Software | Affected Version | How to fix |
|---|---|---|
| Growatt Cloud Portal |
Remedy
Growatt reports the cloud-based vulnerabilities were patched and no user action is needed. Additionally, Growatt strongly recommends that their users take proactive steps in securing their devices and take the following actions: * Update all devices to the latest firmware version when available. (Updates are automatic, no user action needed.) * Use strong passwords and enable multi-factor authentication where applicable. * Report any security concerns to Service@Growatt.com. * Stay vigilant. Users and installers should regularly review security settings, follow best practices, and report any unusual activity.
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Reference Links
Frequently Asked Questions
What is the severity of CVE-2025-26857?
CVE-2025-26857 has a high severity as it allows unauthenticated attackers to rename devices belonging to users.
How do I fix CVE-2025-26857?
To mitigate CVE-2025-26857, users should upgrade the Growatt Cloud Portal to version 3.6.0 or later.
Who is affected by CVE-2025-26857?
CVE-2025-26857 affects users of the Growatt Cloud Portal prior to version 3.6.0.
What kind of devices are targeted in CVE-2025-26857?
CVE-2025-26857 targets EV chargers linked to the Growatt Cloud Portal.
Can I still use the Growatt Cloud Portal if I have CVE-2025-26857?
While you can still use the Growatt Cloud Portal, it is recommended to upgrade to avoid the vulnerabilities associated with CVE-2025-26857.
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