THE SICK InspectorP6xx machine-vision sensors have a critical remote-access vulnerability identified as CVE-2026-11841, which has a CVSS score of 9.4. This flaw allows unauthenticated attackers on the network to access internal files, potentially compromising the device. Affected versions include all firmware below 5.4.0 for the P61x and P62x models, while P63x, P64x, and P65x are affected regardless of firmware version. There have been no confirmed exploits reported yet.
The recommended action is to update to firmware version 5.4.0, as no fix is available for certain models. Attackers can exploit this vulnerability to modify internal storage, leading to denial of service or data theft. Device access should be restricted to trusted systems to mitigate risk.