CVE-2026-76653 json
Missing Authentication in VPN Configuration Management in TP-Link TL-MR6400 and Archer MR600
published 2026-09-10 59 d ago modified 2026-09-11 59 d ago also EUVD-2026-75726
- cvss
- 5.3
- version 4.0, CNA
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 0.5%
- EPSS 0.5% chance of exploitation in 30 days, percentile 41%
- public exploits
- 0
- none known
Summary
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.
Patch / fix
- TP-Link Systems Inc. TL-MR6400 v8 1.5.0 0.9.1 v0001.0 Build 260610 Rel.67978n
- TP-Link Systems Inc. Archer MR600 MR600(EU)_V2_1.12.0 Build 2600826, MR600(EU)_V3_1.4.0 Build 260827
CISA SSVC
- Exploitation
- none
- Automatable
- no
- Technical impact
- partial
- Assessed
- 59 d ago
Exploit prediction
0.47% chance of exploitation in the next 30 days, higher than 41% of all scored CVEs (FIRST EPSS, 2026-11-08).
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| CNA | 4.0 | 5.3 | 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 |
| CNA | 4.0 | 5.3 | 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/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X |
Affected products
- TP-Link Systems Inc. TL-MR6400 v8
- TP-Link Systems Inc. Archer MR600
Classification
- Weakness
-
- CWE-126 Buffer Over-read
References
Sources
- CVE List CVE-2026-76653
- NVD CVE-2026-76653
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