httpd on TP-Link TL-WPA4220 devices (hardware versions 2 through 4) allows remote authenticated users to trigger a buffer overflow (causing a denial of service) by sending a POST request to the /admin/syslog endpoint
Published Nov 18, 2020
6.5
MEDIUMCVSS 3.1
EPSS 1.81%
Description
httpd on TP-Link TL-WPA4220 devices (hardware versions 2 through 4) allows remote authenticated users to trigger a buffer overflow (causing a denial of service) by sending a POST request to the /admin/syslog endpoint. Fixed version: TL-WPA4220(EU)_V4_201023
Affected products
No data.
Configuration 1
- n/a
Running on/with
- v2
Configuration 2
- n/a
Running on/with
- v3
Configuration 3
- < tl-wpa4220\(eu\)_v4_201023
Running on/with
- v4
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:L/UI:N/S:U/C:N/I:N/A:H
No CVSS v3.0 score for this CVE.
AV:N/AC:M/Au:S/C:N/I:N/A:P
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 2, 2026.
Score over time
2021–2026- EPSS v1
- EPSS v5
- EPSS v2
- EPSS v3
Percentile over time
- EPSS v1
- EPSS v5
- EPSS v2
- EPSS v3
Table of values (11 key points)
Flat stretches are collapsed; showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 2, 2026 | 1.81% (0.01809) | 77.84th | v5 (v2026.06.15) |
| Sep 20, 2026 | 1.81% (0.01809) | 77.63th | v5 (v2026.06.15) |
| Jul 20, 2024 | 0.13% (0.00127) | 47.90th | v3 (v2023.03.01) |
| Jun 14, 2024 | 0.13% (0.00127) | 47.59th | v3 (v2023.03.01) |
| Mar 7, 2023 | 0.13% (0.00127) | 45.55th | v3 (v2023.03.01) |
| Mar 6, 2023 | 1.05% (0.01055) | 52.13th | v2 (v2022.01.01) |
| Apr 1, 2022 | 1.05% (0.01055) | 48.43th | v2 (v2022.01.01) |
| Mar 31, 2022 | 4.50% (0.04499) | 74.67th | v2 (v2022.01.01) |
| Jan 6, 2022 | 4.24% (0.04237) | 74.40th | v1 |
| Jan 5, 2022 | 0.98% (0.00976) | 63.07th | v5 (v2026.06.15) |
| Apr 14, 2021 | 0.98% (0.00976) | 0.00th | v1 |
References (2)
- https://the-hyperbolic.com/posts/vulnerabilities-in-tlwpa4220/ x_refsource_MISCExploitThird Party Advisory
- https://www.tp-link.com/us/security x_refsource_MISCVendor Advisory
| Link | Providers | Tags |
|---|---|---|
| https://the-hyperbolic.com/posts/vulnerabilities-in-tlwpa4220/ | x_refsource_MISCExploitThird Party Advisory | |
| https://www.tp-link.com/us/security | x_refsource_MISCVendor Advisory |
Change history (0)
No recorded changes yet.