CVSS 3.1 Score 8.0 of 10 (high)


Published Sep 6, 2023
Updated: Sep 11, 2023


CVE-2023-39935, also known as Archer C5400 firmware vulnerability, affects the Archer C5400 router with firmware versions prior to 'Archer C5400(JP)_V2_230506'. This vulnerability allows a network-adjacent attacker who is authenticated to execute arbitrary operating system (OS) commands. The base severity of this vulnerability is rated as HIGH, with a base score of 8.0 according to NVD@NIST. The privileges required for exploitation are low, and there is no user interaction required. The attack vector is through the adjacent network, and the impact includes high integrity and confidentiality impacts. The availability impact of this vulnerability is also rated as high. Remediation for this vulnerability involves updating the router firmware to version 'Archer C5400(JP)_V2_230506' or later. Failure to address this vulnerability can pose significant dangers to organizations using affected Archer C5400 routers as it enables unauthorized execution of OS commands by authenticated attackers, potentially leading to unauthorized access or control of the network infrastructure.


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