CVE-2025-4276 describes a high-severity vulnerability in UsbCoreDxe, allowing attackers to write arbitrary data into SMRAM and execute arbitrary code at the SMM level. This local attack requires high privileges and high attack complexity, but if successful, it grants complete compromise of confidentiality, integrity, and availability. While the CVSS score is 7.5, indicating a significant risk, there is currently no evidence of active exploitation, public exploit code, or community discussion surrounding this vulnerability.
| Vendor | Product | Version(s) | CPE |
|---|---|---|---|
| Insyde Software | InsydeH2O | >= Kernel 5.3, < 05.39.18, >= Kernel 5.4, < 05.47.18, >= Kernel 5.5, < 05.55.18, >= Kernel 5.6, < 05.62.18, >= Kernel 5.7, < 05.71.18CNA affecteddefault unknown |
CVSS version used by this source: 3.1
CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:C/C:H/I:H/A:H
The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.3 Bluesky, 0.1 Mastodon, and 0.2 GitHub mentions.
No media coverage found for this CVE.
The average CVE in this peer group has 0.2 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.
Remediation records are not available for this CVE.