CVE-2026-0653 is an improper access control vulnerability (CWE-284) found in the TP-Link Tapo C260 v1 smart camera. The flaw allows an attacker with guest-level authentication to bypass intended access restrictions by sending specially crafted requests to a synchronization endpoint within the device's firmware. This endpoint fails to properly enforce privilege checks, enabling the attacker to modify protected device settings that should be inaccessible at their privilege level. The vulnerability does not allow full code execution or remote takeover but permits unauthorized changes to sensitive configuration parameters, potentially impacting device behavior and security posture. The CVSS v4.0 score is 7.2 (high), reflecting network attack vector, low attack complexity, no authentication required beyond guest-level access, and significant impact on confidentiality, integrity, and availability of device settings. No patches or exploits are currently publicly available, but the vulnerability is officially published and reserved as of early 2026.

For European organizations deploying TP-Link Tapo C260 v1 cameras, this vulnerability could lead to unauthorized manipulation of device configurations, undermining the integrity and reliability of security monitoring systems. Attackers could disable or alter camera functions, potentially creating blind spots or enabling further attacks on network infrastructure. The compromise of device settings could also lead to privacy violations if cameras are used in sensitive environments. Given the widespread use of TP-Link devices in consumer and small business markets across Europe, the risk extends to sectors relying on these cameras for physical security and surveillance. The lack of full code execution limits the scope but does not eliminate the threat of operational disruption and data exposure.

Organizations should immediately audit their deployments of TP-Link Tapo C260 v1 cameras and restrict guest-level access to trusted users only. Network segmentation should be enforced to isolate IoT devices from critical infrastructure and sensitive data environments. Monitoring and logging of device configuration changes should be enabled to detect unauthorized modifications. Where possible, disable or restrict access to synchronization endpoints or services that handle configuration changes. Since no official patches are currently available, consider temporary device replacement or firmware rollback if a secure version exists. Engage with TP-Link support channels for updates and apply patches promptly once released. Additionally, implement strong authentication mechanisms and consider network-level controls such as firewall rules to limit access to device management interfaces.