CVE-2021-33834 is a memory corruption vulnerability affecting Insyde H2OFFT 6.20.00 and its iscflashx64.sys component. It arises from improper handling of input during an IOCTL operation, leading to potential memory corruption or system crashes. Rated 7.1 HIGH, this local vulnerability requires low privileges and no user interaction, allowing an attacker to achieve high impact on system availability. Currently, there is no public exploit code, active exploitation, or significant community discussion surrounding this CVE.
| Vendor | Product | Version(s) | CPE |
|---|---|---|---|
6.20.00CPE matchmatch criteria | cpe:2.3:a:insyde:h2offt:6.20.00:*:*:*:*:*:*:* | ||
3.9.3.0CPE matchmatch criteria | cpe:2.3:a:insyde:iscflashx64.sys:3.9.3.0:*:*:*:*:*:*:* |
CVSS version used by this source: 3.1
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H
The average CVE in this peer group has 0.0 Twitter, 0.1 Reddit, 0.2 Bluesky, 0.1 Mastodon, and 0.2 GitHub mentions.
No media coverage found for this CVE.
The average CVE in this peer group has 0.3 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.
Remediation records are not available for this CVE.