SEPTEMBER 30, 2026
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Case File

CVE-2021-1104

CRITICAL · CVSS 9.8 EPSS 1.66%

Source: NVD + CISA KEV + EPSS (historical backfill) · Published 2021-08-13 · Last synced 2026-08-04

CyberRota Analysis

This is a critical severity vulnerability with a CVSS score of 9.8. It may lead to a denial-of-service condition.

CVE
CVE-2021-1104
Severity
CRITICAL
CVSS
9.8
EPSS
1.66%

Original NVD 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.