TOCTOU Vulnerabilities in HP BIOS for Certain HP PC Products
CVE-2022-43778
7.8HIGH
Summary
The identified Time-of-Check to Time-of-Use (TOCTOU) vulnerabilities in the HP BIOS can potentially allow an attacker to execute arbitrary code, leading to risks such as denial of service and unauthorized information disclosure. These vulnerabilities arise from the timing differences between when a check is made on the state of a variable and when the variable is used, which can be exploited to manipulate system behavior.
Affected Version(s)
HP PC BIOS See HP Security Bulletin reference for affected versions.
References
CVSS V3.1
Score:
7.8
Severity:
HIGH
Confidentiality:
High
Integrity:
High
Availability:
High
Attack Vector:
Local
Attack Complexity:
High
Privileges Required:
Low
User Interaction:
None
Scope:
Changed
Timeline
Vulnerability published
Vulnerability Reserved