CVE-2022-33985 is a Time-of-Check-Time-of-Use (TOCTOU) vulnerability affecting Insyde kernel versions 5.2, 5.3, 5.4, and 5.5. An attacker with local access could exploit this flaw by targeting input buffers used by the NvmExpressDxe software SMI handler with DMA transactions, leading to System Management Random Access Memory (SMRAM) corruption. With a CVSS score of 7.0 (High), this vulnerability has a high impact on confidentiality, integrity, and availability, but requires high attack complexity. There is currently no evidence of active exploitation, public exploit code, or significant community discussion surrounding this CVE.
| Vendor | Product | Version(s) | CPE |
|---|---|---|---|
>= 5.2, < 5.2.05.27.25CPE matchmatch criteria | cpe:2.3:a:insyde:kernel:*:*:*:*:*:*:*:* | ||
>= 5.3, < 5.3.05.36.25CPE matchmatch criteria | cpe:2.3:a:insyde:kernel:*:*:*:*:*:*:*:* | ||
>= 5.4, < 5.4.05.44.25CPE matchmatch criteria | cpe:2.3:a:insyde:kernel:*:*:*:*:*:*:*:* | ||
>= 5.5, < 5.5.05.52.25CPE 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.