CVE-2026-76652
MediumCVSS 4.8Exploitation Probability (EPSS)
Low risk43th percentile - higher than 43% of all known CVEs
Summary
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.
Risk Assessment
An authenticated remote attacker can write files to unintended locations, potentially overwriting or modifying files accessible to the affected service, which could lead to further attacks.
Recommendation
Update the firmware of affected devices to a version that fixes the vulnerability and restrict access to the file upload functionality to trusted users.
Other vulnerabilities in Archer MR600 and TL-MR6400
Original NVD description (English source)
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 or modifying files accessible to the affected service; arbitrary code execution has not been demonstrated.
Vulnerability data from NVD (NIST) · CISA KEV · EPSS