CVE-2021-33834
7.1 High
CVSS3
Attack Vector
LOCAL
Attack Complexity
LOW
Privileges Required
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
NONE
Availability Impact
HIGH
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H
7.1 High
AI Score
Confidence
High
0.0004 Low
EPSS
Percentile
9.0%
An issue was discovered in iscflashx64.sys 3.9.3.0 in Insyde H2OFFT 6.20.00. When handling IOCTL 0x22229a, the input used to allocate a buffer and copy memory is mishandled. This could cause memory corruption or a system crash.
Affected configurations
| CPE | Name | Operator | Version |
|---|---|---|---|
| insyde:h2offt | insyde h2offt | eq | 6.20.00 |
| insyde:iscflashx64.sys | insyde iscflashx64.sys | eq | 3.9.3.0 |
Related
7.1 High
CVSS3
Attack Vector
LOCAL
Attack Complexity
LOW
Privileges Required
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
NONE
Availability Impact
HIGH
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H
7.1 High
AI Score
Confidence
High
0.0004 Low
EPSS
Percentile
9.0%