https://randhana.com/blog Thoughtful work. Real impact. en-us pulathisi.kariyawasam@gmail.com (Pulathisi Kariyawasam) pulathisi.kariyawasam@gmail.com (Pulathisi Kariyawasam) Sat, 02 May 2026 00:00:00 GMT https://randhana.com/blog/cve-2026-31431-simplified-explanation-for-cs-students https://randhana.com/blog/cve-2026-31431-simplified-explanation-for-cs-students A detailed breakdown of CVE-2026-31431 - understanding how a kernel page cache vulnerability allows privilege escalation from regular user to root access through cryptographic socket exploitation. Sat, 02 May 2026 00:00:00 GMT pulathisi.kariyawasam@gmail.com (Pulathisi Kariyawasam) vulnerabilitykernellinuxcybersecurity https://randhana.com/blog/reverse-engineering-my-dashcams-hidden-rtsp-stream https://randhana.com/blog/reverse-engineering-my-dashcams-hidden-rtsp-stream My Yantop dashcam (sold as the Car DVR/Dash Camera Yantop) only lets you view the live feed through its own app. I used nmap, PCAPdroid and Wireshark to figure out what that app was actually doing on the network, and turned it into a script that opens the same feed straight in VLC - no app, no flashing, no root. Sun, 02 Aug 2026 00:00:00 GMT pulathisi.kariyawasam@gmail.com (Pulathisi Kariyawasam) reverse-engineeringcybersecuritynetworkingiotrtspdashcamyantop