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.
Published 2021-08-13 16:15:07
Updated 2021-08-23 20:30:10
View at NVD,   CVE.org
Vulnerability category: Denial of serviceInformation leak

Exploit prediction scoring system (EPSS) score for CVE-2021-1104

Probability of exploitation activity in the next 30 days: 0.34%

Percentile, the proportion of vulnerabilities that are scored at or less: ~ 71 % EPSS Score History EPSS FAQ

CVSS scores for CVE-2021-1104

Base Score Base Severity CVSS Vector Exploitability Score Impact Score Score Source
7.5
HIGH AV:N/AC:L/Au:N/C:P/I:P/A:P
10.0
6.4
NIST
9.8
CRITICAL CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
3.9
5.9
NIST

CWE ids for CVE-2021-1104

References for CVE-2021-1104

Products affected by CVE-2021-1104

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