TI-2020-17035 Aliases CVE-2020-28005 GHSA-94q8-gmc5-fvp3

httpd on TP-Link TL-WPA4220 devices (hardware versions 2 through 4) allows remote…

LOW 32CWE-120Published 2020-11-18 · Updated 2024-08-04

Key facts

Attack vector: Network
Privileges required: Low
User interaction: None
Attack complexity: Low
Impact type: Denial of service
Confidentiality · integrity · availability: None · None · High
Fix status: No fix listed

Attack profile from CVSS 3.1 · NVD. Fix status from CNA. Impact type from CWE-120 and the CVSS impact.

Summary

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

Why it matters now

EPSS 0.01809 78th percentileScored 2026-11-07

Public exploit Yes 1 exploit referenceTagged by NVD

Fix No fix listed No fixed version in the sources yet

SSVC decision points

Not available: CISA has not published SSVC decision points for this record.

Affected products

Vendor	Product	Affected versions	Fixed in	Status	Source
—	—	all versions	—	No fix listed	CNA

— Vendor— Affected all versions Fixed in — No fix listed CNA

CPE configurations NVD · 5

CPE	Versions	Role	Vendor
cpe:2.3:o:tp-link:tl-wpa4220_firmware::::::::	all versions	Vulnerable	TP-Link
cpe:2.3:h:tp-link:tl-wpa4220:v2:::::::*	v2	Running on	TP-Link
cpe:2.3:h:tp-link:tl-wpa4220:v3:::::::*	v3	Running on	TP-Link
cpe:2.3:o:tp-link:tl-wpa4220_firmware::::::::	before tl-wpa4220\(eu\)_v4_201023	Vulnerable	TP-Link
cpe:2.3:h:tp-link:tl-wpa4220:v4:::::::*	v4	Running on	TP-Link

cpe:2.3:o:tp-link:tl-wpa4220_firmware:*:*:*:*:*:*:*:* Versions all versions Vulnerable ·TP-Link
cpe:2.3:h:tp-link:tl-wpa4220:v2:*:*:*:*:*:*:* Versions v2 Running on ·TP-Link
cpe:2.3:h:tp-link:tl-wpa4220:v3:*:*:*:*:*:*:* Versions v3 Running on ·TP-Link
cpe:2.3:o:tp-link:tl-wpa4220_firmware:*:*:*:*:*:*:*:* Versions before tl-wpa4220\(eu\)_v4_201023 Vulnerable ·TP-Link
cpe:2.3:h:tp-link:tl-wpa4220:v4:*:*:*:*:*:*:* Versions v4 Running on ·TP-Link

Remediation

No fixed version listed by the sources yet.

Timeline

2026-10-02 Threatist record created from CVE-2020-28005
2026-10-03 Alias added: GHSA-94q8-gmc5-fvp3

References

Exploit 1

https://the-hyperbolic.com/posts/vulnerabilities-in-tlwpa4220/

Advisory 1

https://www.tp-link.com/us/security

TI-2020-14869 httpd on TP-Link TL-WPA4220 devices (versions 2 through 4) allows remote authenticated… CVSS 3.1HIGH 8.8
TI-2021-09840 TP-Link's TL-WPA4220 4.0.2 Build 20180308 Rel.37064 username and password are sent via the cookie. CVSS 3.1HIGH 7.5
TI-2021-09841 TP-Link's TL-WPA4220 4.0.2 Build 20180308 Rel.37064 does not use SSL by default. CVSS 3.1MEDIUM 5.5

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences