CVE-2026-76653 (GCVE-0-2026-76653)
Vulnerability from cvelistv5 – Published: 2026-09-10 20:12 – Updated: 2026-09-10 20:27
VLAI
EPSS
VEX
Title
Missing Authentication in VPN Configuration Management in TP-Link TL-MR6400 and Archer MR600
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.
Severity
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-09-10 20:27 UTC
CWE
Assigner
References
3 references
| URL | Tags |
|---|---|
| https://www.tp-link.com/en/support/download/tl-mr… | patch |
| https://www.tp-link.com/en/support/download/arche… | patch |
| https://www.tp-link.com/us/support/faq/5292/ | vendor-advisory |
Impacted products
2 products
| Vendor | Product | Version | CPE status | |
|---|---|---|---|---|
| TP-Link Systems Inc. | TL-MR6400 v8 |
Affected:
0 , < 1.5.0 0.9.1 v0001.0 Build 260610 Rel.67978n
(custom)
|
guessed | |
| TP-Link Systems Inc. | Archer MR600 |
Affected:
v3 , < MR600(EU)_V3_1.4.0 Build 260827
(custom)
Affected: v2 , < MR600(EU)_V2_1.12.0 Build 2600826 (custom) |
guessed |
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Experimental. This forecast is provided for visualization only and may change without notice. Do not use it for operational decisions.
Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.
Sightings
| Author | Source | Type | Date | Other |
|---|
Nomenclature
- Seen: The vulnerability was mentioned, discussed, or observed by the user.
- Confirmed: The vulnerability has been validated from an analyst's perspective.
- Published Proof of Concept: A public proof of concept is available for this vulnerability.
- Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
- Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
- Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
- Not confirmed: The user expressed doubt about the validity of the vulnerability.
- Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.
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The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the
vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base
model, served locally by ML-Gateway.
They have not been verified by an analyst and are provided for guidance only.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.
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Related by attack behaviour
Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.
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