How severe is CVE-2020-25752?

CVE-2020-25752 has a CVSS 3.x base score of 5.3, rated medium severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is low, integrity none, and availability none.

Is CVE-2020-25752 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (73rd percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2020-25752?

CVE-2020-25752 primarily affects Enphase Envoy Firmware. In total, 2 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2020-25752?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.

When was CVE-2020-25752 published?

CVE-2020-25752 was published on 2021-06-16 and last updated on 2026-06-17.

CVE-2020-25752

CVE-2020-25752 is a medium-severity vulnerability in Enphase Envoy Firmware with a CVSS 3.x base score of 5.3. 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-798.

Key facts

Severity: Medium (CVSS 3.x base score 5.3)
CVSS v2: 5.0
EPSS exploit prediction: 2% (73rd percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-798
Affected product: Enphase Envoy Firmware
Published: 2021-06-16
Last modified: 2026-06-17

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.

Frequently asked questions

What is CVE-2020-25752?: 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.
How severe is CVE-2020-25752?: CVE-2020-25752 has a CVSS 3.x base score of 5.3, rated medium severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is low, integrity none, and availability none.
Is CVE-2020-25752 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (73rd percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2020-25752?: CVE-2020-25752 primarily affects Enphase Envoy Firmware. In total, 2 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2020-25752?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2020-25752 published?: CVE-2020-25752 was published on 2021-06-16 and last updated on 2026-06-17.

References

Affected products (2)

cpe:2.3:o:enphase:envoy_firmware:d4.0:*:*:*:*:*:*:*
cpe:2.3:o:enphase:envoy_firmware:r3.0:*:*:*:*:*:*:*

More vulnerabilities in Enphase Envoy Firmware

CVE-2020-25753 — Critical (CVSS 9.8): An issue was discovered on Enphase Envoy R3.x and D4.x devices with v3 software. The default admin password is set to…
CVE-2020-25755 — High (CVSS 8.8): An issue was discovered on Enphase Envoy R3.x and D4.x (and other current) devices. The upgrade_start function in…
CVE-2020-25754 — High (CVSS 7.5): An issue was discovered on Enphase Envoy R3.x and D4.x devices. There is a custom PAM module for user authentication…
CVE-2023-33869 — Medium (CVSS 6.3): Enphase Envoy versions D7.0.88 is vulnerable to a command injection exploit that may allow an attacker to execute root…

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