PT-2025-32957 · Unknown · Usbcoredxe

Published 2025-08-13 · Updated 2025-10-24 · CVE-2025-4276

Positive Technologies (AI Summary)

CVSS v3.1

7.5

High

Base vector

AV:L/AC:H/PR:H/UI:N/S:C/C:H/I:H/A:H

Name of the Vulnerable Software and Affected Versions: UsbCoreDxe (affected versions not specified)

Description: UsbCoreDxe contains a flaw that allows writing to arbitrary memory locations within the System Management RAM (SMRAM). Successful exploitation of this issue can lead to arbitrary code execution at the System Management Mode (SMM) level.

Recommendations: At the moment, there is no information about a newer version that contains a fix for this vulnerability.

RCE

Weakness Enumeration

CWE-20

Related Identifiers

CVE-2025-4276

Affected Products

Usbcoredxe

References · 7

• https://nvd.nist.gov/vuln/detail/CVE-2025-4276 · Security Note
• https://t.me/CVEtracker/29850 · Telegram Post
• https://insyde.com/security-pledge/sa-2025005 · Note
• https://t.me/cveNotify/131993 · Telegram Post
• https://v.redd.it/y5m8sg21z1xf1 · Reddit Post
• https://twitter.com/cracbot/status/1957397100607558045 · Twitter Post
• https://twitter.com/CVEnew/status/1955535788005118198 · Twitter Post