vulntracker.iovulntracker.io
© 2026 vulntracker.io

CVE-2026-76653

Missing Authentication in VPN Configuration Management in TP-Link TL-MR6400 and Archer MR600

MEDIUM
5.3
CVSS Score
Published: September 10, 2026 at 08:12 PM UTC
Updated: September 11, 2026 at 03:40 PM UTC
2 products affected across 1 vendorTL-MR6400Archer MR600

Using TL-MR6400 v8 by TP-Link Systems Inc.?

Get instant alerts when new vulnerabilities affect TL-MR6400 v8 - before attackers find them.

Real-time alertsTrack your software stackFree plan available
Start FreeSign In
Severity
MEDIUM5.3
Exploit prediction
EPSS 0.5%
SSVC
No known exploit

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

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

Archer MR600· TP-Link
60%
v2 ≤ v < MR600(EU)_V2_1.12.0 Build 2600826v3 ≤ v < MR600(EU)_V3_1.4.0 Build 26082723
Affected range stops below MR600(EU)_V2_1.12.0 Build 2600826, so it looks safe — our inference, not a vendor statement
Affected range stops below MR600(EU)_V3_1.4.0 Build 260827, so it looks safe — our inference, not a vendor statement
TL-MR6400· TP-Link
60%
v < 1.5.0 0.9.1 v0001.0 Build 260610 Rel.67978n
Affected range stops below 1.5.0 0.9.1 v0001.0 Build 260610 Rel.67978n, so it looks safe — our inference, not a vendor statement

Remediation

No guide yet

No remediation guidance has been written for this CVE yet. What the record does show:

Patch and advisory references

References (3)

Patch
Source: cverecord
https://www.tp-link.com/en/support/download/tl-mr6400/v8/#Firmware
Patch
Source: cverecord
https://www.tp-link.com/en/support/download/archer-mr600/v5/#Firmware
Vendor Advisory
Source: cverecord
https://www.tp-link.com/us/support/faq/5292/

SSVC — Action Prioritization

SSVCNo known exploitNot automatablePartial impact

SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.

CVSS

5.3MEDIUMTPLink
Vector?

Quick Info

StatusDEFERRED
CWE
CWE-126

Get alerted

Stop reading CVE feeds looking for your own stack

Track the products you run and VulnTracker tells you when a new CVE affects them — with what is known about fixing it, and nothing about the rest.

Create accountSign in
Free plan, no card