Vulnerability · Published Sep 10, 2026 · Assigned by TPLink
CVE-2026-76653Missing Authentication in VPN Configuration Management in TP-Link TL-MR6400 and Archer MR600
Medium 5.3
In plain English
A medium-severity security flaw 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 0.5% (higher than 41% of all known vulnerabilities).
Official description
A missing authentication vulnerability in the VPN configuration management has been identified in Archer MR600 (v2, v3 & v5) and TL-MR6400 v8 due to improper access control; a remote unauthenticated attacker may be able to access and modify VPN configuration information without valid credentials. Successful exploitation may allow a remote unauthenticated attacker to disclose and modify VPN configuration information.
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 260827v2 – before MR600(EU)_V2_1.12.0 Build 2600826 |
Weakness: CWE-126 · Vector: CVSS:4.0/AV:A/AC:L/AT:N/PR:N/UI:N/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N