PT-2025-31364 · Insyde · Insydeh2O

Published 2025-07-30 · Updated 2025-07-30 · CVE-2025-4423

Positive Technologies (AI Summary)

CVSS v3.1

8.2

High

Base vector

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

Name of the Vulnerable Software and Affected Versions Lenovo devices running InsydeH2O firmware (affected versions not specified)

Description A high-severity flaw exists in Lenovo devices running InsydeH2O firmware. Local attackers with privileges can exploit a buffer flaw to escalate access.

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

RCE

Buffer Overflow

Weakness Enumeration

CWE-119

Related Identifiers

CVE-2025-4423

Affected Products

Insydeh2O

References · 7

• https://nvd.nist.gov/vuln/detail/CVE-2025-4423 · Security Note
• https://t.me/CVEtracker/28725 · Telegram Post
• https://insyde.com/security-pledge/sa-2025007 · Note
• https://twitter.com/VulmonFeeds/status/1950371951798534242 · Twitter Post
• https://twitter.com/offseq/status/1950413682581598670 · Twitter Post
• https://support.lenovo.com/us/en/product_security/home · Note
• https://twitter.com/CVEnew/status/1950365025564074006 · Twitter Post