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CVE-2020-25752

MEDIUM
5.3
CVSS Score
Published: June 16, 2021 at 06:23 PM UTC
Updated: June 17, 2026 at 03:07 AM UTC
2 products affected across 1 vendorEnvoy FirmwareEnvoy

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Severity
MEDIUM5.3
Exploit prediction
EPSS 2%

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.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

Envoy Firmware· Enphase
95%
d4.0r3.0
enphase-envoy (same device)
Envoy· Enphasedevice
80%
All versions

Remediation

No guide yet

No remediation guidance has been written for this CVE yet. What the record does show:

Patch and advisory references

References (3)

x_refsource_MISCProductVendor Advisory
Source: [email protected]
https://enphase.com/en-us/products-and-services/envoy-and-combiner
x_refsource_MISCExploitThird Party Advisory
Source: [email protected]
https://medium.com/stage-2-security/can-solar-controllers-be-used-to-generate-fake-clean-energy-credits-4a7322e7661a
x_refsource_MISCThird Party Advisory
Source: [email protected]
https://stage2sec.com

CVSS

5.3MEDIUM[email protected]
Attack Vector
NETWORK
Complexity
LOW
Privileges
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
LOW
Integrity
NONE
Availability
NONE
Vector?

Quick Info

StatusMODIFIED
CWE
CWE-798

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