A TOCTOU (time-of-check to time-of-use) vulnerability exists where an attacker may use a compromised BIOS to cause the TEE OS to read memory out of bounds that could potentially result in a denial of service.
Published 2023-01-11 08:15:13
Updated 2023-01-20 18:36:20
View at NVD,   CVE.org
Vulnerability category: Denial of service

Exploit prediction scoring system (EPSS) score for CVE-2021-46795

0.04%
Probability of exploitation activity in the next 30 days EPSS Score History
~ 7 %
Percentile, the proportion of vulnerabilities that are scored at or less

CVSS scores for CVE-2021-46795

Base Score Base Severity CVSS Vector Exploitability Score Impact Score Score Source First Seen
4.7
MEDIUM CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H
1.0
3.6
NIST

CWE ids for CVE-2021-46795

  • The product checks the state of a resource before using that resource, but the resource's state can change between the check and the use in a way that invalidates the results of the check. This can cause the product to perform invalid actions when the resource is in an unexpected state.
    Assigned by: nvd@nist.gov (Primary)

Products affected by CVE-2021-46795

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