Vulnerability · Published Aug 7, 2026 · Assigned by TPLink
CVE-2026-9031Authenticated Denial-of-Service in HTTPD Service in TP-Link Archer A6
Medium 6.8
In plain English
A medium-severity improper input validation in Archer A6 v4 from TP-Link Systems Inc.. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.3% (higher than 17% of all known vulnerabilities).
Official description
An input validation vulnerability exists in the HTTP-WRITEOEM handler due to insufficient validation of user-supplied data before it is processed by internal flash-write handling logic. Successful exploitation may cause httpd process or device to crash, resulting in loss of access to the web interface and a denial-of-service condition.
Affected products (as reported)
| Vendor | Product | Versions |
|---|---|---|
| TP-Link Systems Inc. | Archer A6 v4 | 0 – before V4_1.15.10 Build 260625 Rel.25447 |
Weakness: CWE-20 · Vector: CVSS:4.0/AV:A/AC:L/AT:N/PR:H/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N