Totolink · Totolink A3002Ru · CVE-2025-45859
**Name of the Vulnerable Software and Affected Versions**
TOTOLINK A3002R version 4.0.0-B20230531.1404
**Description**
The issue is related to a buffer overflow in the formMapDelDevice interface of the TOTOLINK A3002R router's firmware. This occurs due to the lack of size checking for input data, which can be exploited by a remote attacker to impact the confidentiality and integrity of protected information. The buffer overflow is specifically caused by the `bandstr` parameter in the formMapDelDevice interface.
**Recommendations**
For TOTOLINK A3002R version 4.0.0-B20230531.1404, as a temporary workaround, consider disabling the `formMapDelDevice` interface until a patch is available. Restrict access to the `bandstr` parameter in the formMapDelDevice interface to minimize the risk of exploitation. At the moment, there is no information about a newer version that contains a fix for this vulnerability.