What is CVE-2020-25755?

CVE-2020-25755 is a high-severity vulnerability in Enphase Envoy, classified under OS Command Injection. CVSS score: 8.8/10. Published 2021-06-16.

How severe is CVE-2020-25755?

High severity. CVSS v3 base score is 8.8 out of 10.

RCE in Enphase Envoy

CVE-2020-25755

An issue was discovered on Enphase Envoy R3.x and D4.x (and other current) devices. The upgrade_start function in /installer/upgrade_start allows remote authenticated users to execute arbitrary commands via the force parameter.

Vulnerability class: Command Injection (OS Command Injection)

Published 2021-06-16 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 8.8 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H.

EPSS exploit prediction

EPSS: 0.031 (87.2th percentile), scored 2026-10-01.

Low probability of exploitation in the next 30 days, but still tracked. 87th percentile — 87.2% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.031 · newest: 0.031 · change: 0.000

Affected products

Enphase Envoy
Enphase Envoy Firmware — versions d4.0, r3.0

Weakness classification (CWE)

CWE-78 — OS Command Injection

References

enphase.com/en-us/products-and-services/envoy-and-combiner (Product, Vendor Advisory)
stage2sec.com (Third Party Advisory)
medium.com/stage-2-security/can-solar-controllers-be-used-to-generate-fake-clea… (Exploit, Third Party Advisory)

Frequently asked questions

What is CVE-2020-25755?: CVE-2020-25755 is a high-severity vulnerability in Enphase Envoy, classified under OS Command Injection. CVSS score: 8.8/10. Published 2021-06-16.
How severe is CVE-2020-25755?: High severity. CVSS v3 base score is 8.8 out of 10.