An issue was discovered on Enphase Envoy R3.x and D4.x devices
Published Jun 16, 2021
5.3
MEDIUMCVSS 3.1
EPSS 1.60%
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 products
No data.
- d4.0
- r3.0
No data.
No Red Hat product state for this CVE.
No package ranges for this CVE.
Remediation
No remediation recorded yet.
Metrics
No CVSS v4.0 score for this CVE.
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
No CVSS v3.0 score for this CVE.
AV:N/AC:L/Au:N/C:P/I:N/A:N
This CVE is not in the KEV list.
No CISA SSVC assessment for this CVE yet.
Estimated probability of exploitation in the wild in the next 30 days (FIRST EPSS). As of Oct 3, 2026.
Score over time
2021–2026- EPSS v1
- EPSS v5
- EPSS v2
- EPSS v3
- EPSS v4
Percentile over time
- EPSS v1
- EPSS v5
- EPSS v2
- EPSS v3
- EPSS v4
Table of values (15 key points)
Flat stretches are collapsed; showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 3, 2026 | 1.60% (0.01603) | 75.00th | v5 (v2026.06.15) |
| Jun 15, 2026 | 1.60% (0.01603) | 72.60th | v5 (v2026.06.15) |
| Mar 17, 2025 | 0.79% (0.00792) | 72.25th | v4 (v2025.03.14) |
| Dec 12, 2024 | 0.18% (0.00179) | 56.44th | v3 (v2023.03.01) |
| Mar 1, 2024 | 0.18% (0.00179) | 54.23th | v3 (v2023.03.01) |
| Jan 21, 2024 | 0.16% (0.00157) | 52.12th | v3 (v2023.03.01) |
| Sep 8, 2023 | 0.11% (0.00111) | 43.59th | v3 (v2023.03.01) |
| Mar 7, 2023 | 0.09% (0.00092) | 37.82th | v3 (v2023.03.01) |
| Mar 6, 2023 | 0.95% (0.00954) | 36.37th | v2 (v2022.01.01) |
| Apr 1, 2022 | 0.95% (0.00954) | 32.50th | v2 (v2022.01.01) |
| Feb 4, 2022 | 6.95% (0.06947) | 79.73th | v2 (v2022.01.01) |
| Feb 3, 2022 | 3.85% (0.03849) | 72.82th | v1 |
| Jan 6, 2022 | 3.85% (0.03849) | 72.58th | v1 |
| Jan 5, 2022 | 0.88% (0.00884) | 60.53th | v5 (v2026.06.15) |
| Jun 17, 2021 | 0.88% (0.00884) | 0.00th | v1 |
References (3)
- https://enphase.com/en-us/products-and-services/envoy-and-combiner x_refsource_MISCProductVendor Advisory
- https://medium.com/stage-2-security/can-solar-controllers-be-used-to-generate-fake-clean-energy-credits-4a7322e7661a x_refsource_MISCExploitThird Party Advisory
- https://stage2sec.com x_refsource_MISCThird Party Advisory
| Link | Providers | Tags |
|---|---|---|
| https://enphase.com/en-us/products-and-services/envoy-and-combiner | x_refsource_MISCProductVendor Advisory | |
| https://medium.com/stage-2-security/can-solar-controllers-be-used-to-generate-fake-clean-energy-credits-4a7322e7661a | x_refsource_MISCExploitThird Party Advisory | |
| https://stage2sec.com | x_refsource_MISCThird Party Advisory |
Change history (0)
No recorded changes yet.