CVE-2026-76652
Received Received - Intake

Authenticated Directory Traversal in TP-Link Archer MR600 and TL-MR6400

Vulnerability report for CVE-2026-76652, including description, CVSS score, EPSS score, affected products, exploitability, helpful resources, and attack-flow context.

Publication date: 2026-09-10

Last updated on: 2026-09-10

Assigner: TPLink

Description

An authenticated directory traversal vulnerability in file upload functionality has been identified in Archer MR600 (v2, v3 & v5) and TL-MR6400 v8. Due to insufficient validation of user-supplied file information, an authenticated remote attacker with access to the affected upload functionality could upload a specially crafted file and cause it to be written outside the intended directory. Successful exploitation could allow an authenticated remote attacker to write files to unintended locations, potentially overwriting orΒ modifyingΒ files accessible to the affected service; arbitrary code execution has not beenΒ demonstrated.

CVSS Scores

EPSS Scores

Probability:
Percentile:

Meta Information

Published
2026-09-10
Last Modified
2026-09-10
Generated
2026-09-11
AI Q&A
2026-09-11
EPSS Evaluated
N/A
NVD

Affected Vendors & Products

Showing 2 associated CPEs
Vendor Product Version / Range
archer mr600 From 2|end_including=5 (inc)
tp-link tl-mr6400 8

Helpful Resources

Exploitability

CWE
CWE Icon
KEV
KEV Icon
CWE ID Description
CWE-22 The product uses external input to construct a pathname that is intended to identify a file or directory that is located underneath a restricted parent directory, but the product does not properly neutralize special elements within the pathname that can cause the pathname to resolve to a location that is outside of the restricted directory.

Attack-Flow Graph

AI Quick Actions

Instant insights powered by AI
Executive Summary

This is an authenticated directory traversal vulnerability in file upload functionality affecting Archer MR600 (v2, v3 & v5) and TL-MR6400 v8. Due to insufficient validation of user-supplied file information, an authenticated remote attacker could upload a specially crafted file to write outside the intended directory.

Impact Analysis

An attacker could overwrite or modify files accessible to the affected service. While arbitrary code execution has not been demonstrated, file overwrites could disrupt service functionality or lead to further compromise.

Mitigation Strategies

Disable or restrict access to the file upload functionality on affected Archer MR600 (v2, v3, v5) and TL-MR6400 v8 devices until patches are applied. Ensure strong authentication is enforced for all users with access to administrative or upload features.

Chat Assistant

Ask questions about this CVE
Hi! I’m here to help you understand CVE-2026-76652. Ask me anything about the vulnerability, its impact, or mitigation strategies.
0/70

EPSS Chart