Here is what the page “Can You Run Regular Ethernet Cables Outside? Risks and Better Alternatives” contains. Many homeowners wonder if they can run standard Ethernet cables outdoors to extend their network to a garage, shed, or security camera. The short answer is yes, it will physically work—but just because you can do something doesn't mean you should. Regular indoor Ethernet cables are not designed to withstand outdoor conditions.
Their PVC jackets degrade under UV sunlight, become brittle in freezing temperatures, and offer no protection against moisture, which can lead to corrosion, short circuits, and even equipment damage. For temporary setups or very short runs in protected areas, a standard cable might survive, but it's a gamble. For any permanent outdoor installation, you should use outdoor-rated Ethernet cable (CMX) with a UV-resistant, waterproof jacket, or run the cable inside conduit. This listing links straight to the original page, where the content is available in full.