CVE-2026-107194
Sungrow iSolarCloud before 2026-08-25 allows authentication bypass and account takeover via "login_type":"5" in a login request, potentially leading to "local blackouts on the whole continent" in Europe.
Does this matter?
High impact if exploited, but EPSS currently rates exploitation as unlikely (0.45%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.
Description
Sungrow iSolarCloud before 2026-08-25 allows authentication bypass and account takeover via "login_type":"5" in a login request, potentially leading to "local blackouts on the whole continent" in Europe. An email address for the user_account property is required; however, a user can view the email address associated with their parent organization.
- CVSS 4.0
- 9.2 CRITICALCVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:L/VI:H/VA:H/SC:H/SI:H/SA:H/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/M
- EPSS
- 0.45% probability · 39th percentile
- Public exploits
- None in Exploit-DB
- CISA KEV
- Not listed
- Weakness
- CWE-288
- Source
- cve@mitre.org
EPSS moved from 0.3% on 8 October 2026 to 0.4% on 26 October 2026.
References
- https://jakkaru.de/articles/sungrow-vulnerability-exposes-gigawatts-worldwide
- https://www.sungrowpower.com/en/products/cloud-software/isolarcloud
- https://www.linkedin.com/posts/patrick-lamplmair-0aa66715b_otsecurity-gridsecurity-solarenergy-activity-7514199420771393536-HAi3
- https://www.pv-magazine.com/2026/10/08/sungrow-patches-isolarcloud-vulnerability-after-security-researchers-gain-access/
- https://www.pv-tech.org/sungrow-patches-cloud-vulnerability-affecting-solar-inverters/
- https://www.sungrowpower.com/en/login-bypass-vulnerability-in-sungrow-isolarcloud
Source: NVD record, EPSS from FIRST.org, KEV from CISA, exploits from Exploit-DB. Refreshed daily. Download this record as JSON.