PT-2025-32958 · Tcg2Smm · Tcg2Smm

Published 2025-08-13 · Updated 2025-11-24 · CVE-2025-4277

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: Tcg2Smm (affected versions not specified)

Description: Tcg2Smm contains a flaw that allows writing arbitrary memory inside SMRAM and executing arbitrary code at the 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-2025-4277

Affected Products

Tcg2Smm

References · 8

• https://nvd.nist.gov/vuln/detail/CVE-2025-4277 · Security Note
• https://t.me/cveNotify/131994 · Telegram Post
• https://twitter.com/CVEnew/status/1955535787153559561 · Twitter Post
• https://insyde.com/security-pledge/sa-2025005 · Note
• https://v.redd.it/y5m8sg21z1xf1 · Reddit Post
• https://twitter.com/cracbot/status/1957397102423670877 · Twitter Post
• https://support.lenovo.com/ca/en/downloads/ds571566-bios-update-for-windows-11-64-bit-lenovo-legion-go-s-8arp1 · Reddit Post
• https://t.me/CVEtracker/29851 · Telegram Post