CVE-2026-76653

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

Published Sep 10, 2026 CVSS 4.0 · 5.3 Medium EPSS < 1% KEV · Not listed
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.

Remediation

No solution or workaround provided in the CVE record

Tracking

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Advisories

No advisories available
History
Type Values Removed Values Added
First Time appeared Tp-link
Tp-link archer Mr600
Tp-link tl-mr6400 V8
Vendors & Products Tp-link
Tp-link archer Mr600
Tp-link tl-mr6400 V8
Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}

Type Values Removed Values Added
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.
Title Missing Authentication in VPN Configuration Management in TP-Link TL-MR6400 and Archer MR600
Weaknesses CWE-126
References
Metrics cvssV4_0

{'score': 5.3, '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'}

Weaknesses

Sources

Status
PUBLISHED
Assigner
TPLink
Published
Updated
Sep 10, 2026, 8:27 PM
Reserved
Aug 19, 2026, 3:49 PM
Status
Deferred
Published
Sep 10, 2026, 9:17 PM
Modified
Sep 11, 2026, 3:21 PM