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

CVE-2026-29645 (NEMU/OpenXiangShan/NEMU) : The RVV decoder in NEMU before v2025.12.r2 has an improper instruction-validation flaw: it does not properly validate the funct3 field when decoding vsetvli/vsetivli/vsetvl. As a result, certain invalid OP-V instruction encodings can be misinterpreted an...