CVE-2025-26857

Growatt Cloud portal Authorization Bypass Through User-Controlled Key

Description

Unauthenticated attackers can rename arbitrary devices of arbitrary users (i.e., EV chargers).

Remediation

Solution:

  • 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.

Category

6.9
CVSS
Severity: Medium
CVSS 4.0 •
CVSS 3.1 •
EPSS 0.06%
Affected: Growatt Cloud portal
Published at:
Updated at:

References

Link Tags
https://www.cisa.gov/news-events/ics-advisories/icsa-25-105-04

Frequently Asked Questions

What is the severity of CVE-2025-26857?
CVE-2025-26857 has been scored as a medium severity vulnerability.
How to fix CVE-2025-26857?
To fix CVE-2025-26857: 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.
Is CVE-2025-26857 being actively exploited in the wild?
As for now, there are no information to confirm that CVE-2025-26857 is being actively exploited. According to its EPSS score, there is a ~0% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
What software or system is affected by CVE-2025-26857?
CVE-2025-26857 affects Growatt Cloud portal.
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