Overview
CVE-2025-59368 describes an integer underflow vulnerability discovered in Aicloud, a feature commonly found in ASUS routers. This vulnerability could be exploited by an authenticated attacker to potentially disrupt the availability of the affected device. This advisory details the specifics of this flaw, its potential impact, and recommended mitigation strategies. Refer to the official ASUS Security Advisory for the latest information.
Technical Details
The vulnerability stems from an integer underflow condition within the Aicloud component. A crafted request, sent by an authenticated user, can trigger this underflow. The specific function and input parameters leading to the underflow are detailed in ASUS’s internal documentation. This underflow likely leads to memory corruption or other unexpected behaviors within the Aicloud process, potentially resulting in a denial-of-service condition.
CVSS Analysis
Currently, a CVSS score has not been assigned to CVE-2025-59368, and its severity is listed as N/A. This may be due to ongoing analysis or the specific exploit conditions required. However, given the potential for denial-of-service, users should still take precautions and apply the recommended mitigation steps.
Possible Impact
Successful exploitation of CVE-2025-59368 can lead to the following:
- Denial of Service (DoS): The primary risk is the interruption of service, rendering the ASUS router and connected network unavailable.
- Potential for Further Exploitation: While the immediate impact is DoS, an integer underflow can sometimes be chained with other vulnerabilities to achieve more significant compromise. While not confirmed, further research may reveal such possibilities.
Mitigation and Patch Steps
ASUS has released a security update for router firmware to address this vulnerability. Users are strongly advised to take the following steps:
- Check your router model: Identify your ASUS router model number.
- Visit the ASUS Support Website: Navigate to the ASUS support website (typically asus.com) and locate the support page for your router model.
- Download the Latest Firmware: Download the latest firmware version available for your router. Ensure it includes the security patch mentioned in the ASUS Security Advisory.
- Install the Firmware Update: Follow the instructions provided by ASUS to install the firmware update. Important: Ensure the router remains powered on throughout the update process to prevent damage.
Refer to the ‘Security Update for ASUS Router Firmware’ section on the ASUS Security Advisory for the relevant firmware versions.
