VULNERABILITY INTELLIGENCE

CVE-2021-1104

CVSS score9.8 CRITICAL
EPSS probability1.66%
CISA KEVNot currently listed
Published2021-08-13
Last modified2026-06-17
CVSS vectorCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Description

The RISC-V Instruction Set Manual contains a documented ambiguity for the Machine Trap Vector Base Address (MTVEC) register that may lead to a vulnerability due to the initial state of the register not being defined, potentially leading to information disclosure, data tampering and denial of service.

Weakness classification

  • nvd@nist.gov: CWE-908

Primary references