Vulnerability · Published Sep 10, 2026 · Assigned by TPLink
CVE-2026-76652Authenticated Directory Traversal Vulnerability in File Upload Functionality in TP-Link TL-MR6400 and Archer MR600
Medium 4.8
In plain English
A medium-severity path traversal in Archer MR600 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 0.7% (higher than 55% of all known vulnerabilities).
Official description
An authenticated directory traversal vulnerability in file upload functionality has been identified in Archer MR600 (v2, v3 & v5) and TL-MR6400 v8. Due to insufficient validation of user-supplied file information, an authenticated remote attacker with access to the affected upload functionality could upload a specially crafted file and cause it to be written outside the intended directory. Successful exploitation could allow an authenticated remote attacker to write files to unintended locations, potentially overwriting or modifying files accessible to the affected service; arbitrary code execution has not been demonstrated.
Affected products (as reported)
| Vendor | Product | Versions |
|---|---|---|
| TP-Link Systems Inc. | TL-MR6400 v8 | 0 – before 1.5.0 0.9.1 v0001.0 Build 260610 Rel.67978n |
| TP-Link Systems Inc. | Archer MR600 | v3 – before MR600(EU)_V3_1.4.0 Build 260827v5 – before MR600(EU)_V5_1.9.0 Build 260805v2 – before MR600(EU)_V2_1.12.0 Build 2600826 |
Weakness: CWE-22 · Vector: CVSS:4.0/AV:A/AC:L/AT:N/PR:H/UI:N/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N