passwd_recovery.lua on the TP-Link Archer C9(UN)_V2_160517 allows an attacker to reset the admin password by leveraging a predictable random number generator seed
Published Jul 21, 2017
9.8
CRITICALCVSS 3.0
EPSS 3.05%
Description
passwd_recovery.lua on the TP-Link Archer C9(UN)_V2_160517 allows an attacker to reset the admin password by leveraging a predictable random number generator seed. This is fixed in C9(UN)_V2_170511.
Affected products
No data.
- 160517
Running on/with
- n/a
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.
No CVSS v3.1 score for this CVE.
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
AV:N/AC:L/Au:N/C:N/I:P/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 1, 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 (18 key points)
Flat stretches are collapsed; showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 1, 2026 | 3.05% (0.03051) | 87.11th | v5 (v2026.06.15) |
| Jun 15, 2026 | 3.05% (0.03051) | 85.81th | v5 (v2026.06.15) |
| Mar 30, 2025 | 13.24% (0.13243) | 93.53th | v4 (v2025.03.14) |
| Mar 29, 2025 | 30.30% (0.30296) | 94.76th | v4 (v2025.03.14) |
| Mar 28, 2025 | 13.24% (0.13243) | 93.53th | v4 (v2025.03.14) |
| Mar 27, 2025 | 30.30% (0.30296) | 96.03th | v4 (v2025.03.14) |
| Mar 20, 2025 | 20.61% (0.20605) | 95.13th | v4 (v2025.03.14) |
| Mar 19, 2025 | 30.30% (0.30296) | 96.10th | v4 (v2025.03.14) |
| Mar 17, 2025 | 20.61% (0.20605) | 95.11th | v4 (v2025.03.14) |
| Dec 12, 2024 | 0.40% (0.00396) | 74.32th | v3 (v2023.03.01) |
| Apr 25, 2024 | 0.39% (0.00394) | 73.09th | v3 (v2023.03.01) |
| Mar 15, 2024 | 0.35% (0.00350) | 71.20th | v3 (v2023.03.01) |
| Feb 8, 2024 | 0.32% (0.00315) | 69.51th | v3 (v2023.03.01) |
| Mar 7, 2023 | 0.40% (0.00396) | 69.30th | v3 (v2023.03.01) |
| Mar 6, 2023 | 9.03% (0.09029) | 94.14th | v2 (v2022.01.01) |
| Feb 4, 2022 | 9.03% (0.09029) | 86.86th | v2 (v2022.01.01) |
| Feb 3, 2022 | 2.74% (0.02742) | 63.06th | v5 (v2026.06.15) |
| Apr 14, 2021 | 2.74% (0.02742) | 0.00th | v1 |
References (2)
- http://www.tp-link.com/en/download/Archer-C9_V2.html#Firmware x_refsource_MISCThird Party Advisory
- https://devcraft.io/posts/2017/07/21/tp-link-archer-c9-admin-password-reset.html x_refsource_MISCExploitThird Party Advisory
| Link | Providers | Tags |
|---|---|---|
| http://www.tp-link.com/en/download/Archer-C9_V2.html#Firmware | x_refsource_MISCThird Party Advisory | |
| https://devcraft.io/posts/2017/07/21/tp-link-archer-c9-admin-password-reset.html | x_refsource_MISCExploitThird Party Advisory |
Change history (0)
No recorded changes yet.