CVE-2020-25752

Name: CVE-2020-25752
Creator: NVD / NIST
Published: 2021-06-16T19:15:17.47+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

MEDIUMCVSS 5.3/10EPSS 1.60%

Last modified Jun 17, 2026

CVE-2020-25752 is a medium-severity vulnerability rated 5.3/10 on the CVSS scale. An issue was discovered on Enphase Envoy R3.x and D4.x devices. There are hardcoded web-panel login passwords for the installer and Enphase accounts. EPSS estimates a 1.60% chance of exploitation in the next 30 days.

Description

An issue was discovered on Enphase Envoy R3.x and D4.x devices. There are hardcoded web-panel login passwords for the installer and Enphase accounts. The passwords for these accounts are hardcoded values derived from the MD5 hash of the username and serial number mixed with some static strings. The serial number can be retrieved by an unauthenticated user at /info.xml. These passwords can be easily calculated by an attacker; users are unable to change these passwords.

Metrics

CVSS 3.1

5.3/10

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N

EPSS Probability

1.60%

72.8th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-798

Affected Software

Vendor	Product	Versions
Enphase	Envoy Firmware	d4.0
Enphase	Envoy Firmware	r3.0

References

https://enphase.com/en-us/products-and-services/envoy-and-combinerProduct, Vendor Advisory
https://medium.com/stage-2-security/can-solar-controllers-be-used-to-generate-fake-clean-energy-credits-4a7322e7661aExploit, Third Party Advisory
https://stage2sec.comThird Party Advisory
https://enphase.com/en-us/products-and-services/envoy-and-combinerProduct, Vendor Advisory
https://medium.com/stage-2-security/can-solar-controllers-be-used-to-generate-fake-clean-energy-credits-4a7322e7661aExploit, Third Party Advisory
https://stage2sec.comThird Party Advisory

Timeline

Published: Jun 16, 2021
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2020-25752?

How severe is CVE-2020-25752?

CVE-2020-25752 has a CVSS score of 5.3/10 (MEDIUM severity). The EPSS model estimates a 1.60% probability of exploitation in the next 30 days.

How do I fix CVE-2020-25752?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2020-25752?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST