PT-2026-33826

NEMU OpenXiangShan/NEMU before v2025.12.r2 contains an improper instruction-validation flaw in its RISC-V Vector RVV decoder. The decoder does not correctly validate the funct3 field when decoding vsetvli/vsetivli/vsetvl, allowing certain invalid OP-V instruction encodings to be misinterpreted an...

CVE-2026-29645

The NEMU (OpenXiangShan/NEMU) simulator, prior to version v2025.12.r2 , is susceptible to an improper instruction-validation flaw within its RISC-V Vector (RVV) decoder . The root cause is the failure to correctly validate the funct3 field during the decoding of vsetvli, vsetivli, and vsetvl inst...