CVE-2026-25789
HighCVSS 7.1Exploitation Probability (EPSS)
Low risk19th percentile - higher than 19% of all known CVEs
Summary
The vulnerability in affected devices is due to improper validation and sanitization of filenames on the Firmware Update page. A remote attacker can use social engineering to trick an authenticated user into selecting a modified firmware file, resulting in malicious JavaScript execution in the context of the user's session without requiring file upload, potentially leading to session hijacking or credential theft.
Risk Assessment
The risk includes session hijacking or credential theft of authenticated users, which could lead to unauthorized access to the device and further attacks within the network.
Recommendation
Immediately update the device firmware to the latest version that includes filename validation fixes. Until the update is applied, restrict access to the firmware update page to trusted administrators only.
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Original NVD description (English source)
Affected devices do not properly validate and sanitize filenames on the Firmware Update page. This could allow a remote attacker to social engineer the user into selecting the modified firmware file to be uploaded. This would result in malitcious JavaScript execution in the context of the authenticated user's session without requiring the file to be uploaded, potentially leading to session hijacking or credential theft.