CVE-2022-33909 is a Time-of-Check to Time-of-Use (TOCTOU) vulnerability affecting Insyde kernels, specifically versions 5.2, 5.3, 5.4, and 5.5. It allows for System Management Random Access Memory (SMRAM) corruption through malicious DMA transactions targeting input buffers used by the HddPassword software SMI handler. The vulnerability has a CVSS v3.1 score of 7.0 (High), indicating a high impact on confidentiality, integrity, and availability, with high attack complexity and requiring local privileges. There is no evidence of active exploitation, publicly available exploit code, or significant community discussion surrounding this CVE.
| Vendor | Product | Version(s) | CPE |
|---|---|---|---|
>= 5.2, < 5.2.05.27.23CPE matchmatch criteria | cpe:2.3:a:insyde:kernel:*:*:*:*:*:*:*:* | ||
>= 5.3, < 5.3.05.36.23CPE matchmatch criteria | cpe:2.3:a:insyde:kernel:*:*:*:*:*:*:*:* | ||
>= 5.4, < 5.4.05.44.23CPE matchmatch criteria | cpe:2.3:a:insyde:kernel:*:*:*:*:*:*:*:* | ||
>= 5.5, < 5.5.05.52.23CPE matchmatch criteria | cpe:2.3:a:insyde:kernel:*:*:*:*:*:*:*:* |
CVSS version used by this source: 3.1
CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H
The average CVE in this peer group has 0.0 Twitter, 0.1 Reddit, 0.1 Bluesky, 0.1 Mastodon, and 0.2 GitHub mentions.
No media coverage found for this CVE.
The average CVE in this peer group has 0.4 InfoSec Media, 0.1 Vendor Blog, and 0.0 Security Researcher mentions.
Remediation records are not available for this CVE.