CVE-2025-56301

CVE-2025-56301 is a high-severity vulnerability affecting Chipsalliance Rocket-Chip commit f517abbf41abb65cea37421d3559f9739efd00a9. It stems from a flawed interaction in the Control and Status Register (CSR) logic between exception handling and MRET return mechanisms. This flaw can lead to conflicting updates to control and status registers, allowing attackers to corrupt exception handling and privilege state transitions, ultimately resulting in a denial of service. The vulnerability has a CVSS score of 7.5 (High) due to its network attack vector, low attack complexity, and high impact on availability. Currently, there is no evidence of active exploitation, public exploit code, or significant community discussion surrounding this CVE.