6G-V2X Security: Overcoming Challenges for a Safer, Smarter Transportation Future

6G-V2X is poised to revolutionize vehicular networks by achieving terabit-per-second (Tb/s) transmission rates, microsecond-level latency, and an integrated space-air-ground-sea architecture, addressing the limitations of 5G-V2X. These advancements enhance network coverage, mitigate signal blind spots, and improve communication reliability, fostering a secure intelligent transportation system. However, the complexity and immaturity of 6G technologies introduce multifaceted security challenges, spanning both physical safety in vehicular environments and cyber threats. While recent research has made significant progress, key challenges remain. This paper reviews enabling technologies for 6G-V2X security, analyzes existing solutions and unresolved issues, and outlines future research directions.