CVE-2023-52874 is a medium-severity vulnerability in the Linux kernel's TDX_HYPERCALL macro, affecting systems utilizing Intel Trust Domain Extensions (TDX). The flaw involves a missing register zeroing operation (RSI) after a hypercall returns from an untrusted Virtual Machine Monitor (VMM), potentially allowing speculative execution of VMM-provided values. With a CVSS score of 5.5, exploitation requires local access and low privileges, but could lead to high confidentiality impact. There is no evidence of active exploitation, public exploit code, or significant community discussion surrounding this vulnerability.
| Vendor | Product | Version(s) | CPE |
|---|---|---|---|
>= 6.4, < 6.5.12CPE matchmatch criteria | cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* | ||
>= 6.6, < 6.6.2CPE matchmatch criteria | cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* |
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:N
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No media coverage found for this CVE.
The average CVE in this peer group has 0.1 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.