How severe is CVE-2025-27939?

CVE-2025-27939 has a CVSS 3.x base score of 7.5, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is none, integrity high, and availability none.

Is CVE-2025-27939 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (52nd percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2025-27939?

CVE-2025-27939 affects Growatt Cloud Portal. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2025-27939?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.

Does CVE-2025-27939 have an EU (EUVD) identifier?

Yes. CVE-2025-27939 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2025-10996.

When was CVE-2025-27939 published?

CVE-2025-27939 was published on 2025-04-15 and last updated on 2026-06-17.

CVE-2025-27939

CVE-2025-27939 is a high-severity vulnerability in Growatt Cloud Portal with a CVSS 3.x base score of 7.5. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-639.

Key facts

Severity: High (CVSS 3.x base score 7.5)
CVSS v4: 6.9
EPSS exploit prediction: 1% (52nd percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2025-10996
Weakness: CWE-639
Affected product: Growatt Cloud Portal
Published: 2025-04-15
Last modified: 2026-06-17

Description

An attacker can change registered email addresses of other users and take over arbitrary accounts.

Frequently asked questions

What is CVE-2025-27939?: An attacker can change registered email addresses of other users and take over arbitrary accounts.
How severe is CVE-2025-27939?: CVE-2025-27939 has a CVSS 3.x base score of 7.5, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is none, integrity high, and availability none.
Is CVE-2025-27939 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (52nd percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2025-27939?: CVE-2025-27939 affects Growatt Cloud Portal. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2025-27939?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
Does CVE-2025-27939 have an EU (EUVD) identifier?: Yes. CVE-2025-27939 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2025-10996.
When was CVE-2025-27939 published?: CVE-2025-27939 was published on 2025-04-15 and last updated on 2026-06-17.

References

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

Affected products (1)

cpe:2.3:a:growatt:cloud_portal:*:*:*:*:*:*:*:*

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