Vulnerability Details : CVE-2021-33834
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.
Vulnerability category: Memory Corruption
Products affected by CVE-2021-33834
- cpe:2.3:a:insyde:h2offt:6.20.00:*:*:*:*:*:*:*
- cpe:2.3:a:insyde:iscflashx64.sys:3.9.3.0:*:*:*:*:*:*:*
Exploit prediction scoring system (EPSS) score for CVE-2021-33834
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-2021-33834
| Base Score | Base Severity | CVSS Vector | Exploitability Score | Impact Score | Score Source | First Seen |
|---|---|---|---|---|---|---|
|
7.1
|
HIGH | CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H |
1.8
|
5.2
|
NIST |
CWE ids for CVE-2021-33834
-
The product writes data past the end, or before the beginning, of the intended buffer.Assigned by: nvd@nist.gov (Primary)
References for CVE-2021-33834
-
https://www.insyde.com/security-pledge
Insyde's Security Pledge | Insyde SoftwareNot Applicable
-
https://www.insyde.com/security-pledge/SA-2021004
Insyde Security Advisory 2021004 | Insyde SoftwareVendor Advisory
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