CVE-2023-35841

WinFlash Driver Permissions Issue

State: Published
Severity: 7.8 High
Published: May 14, 2024
Updated: Jul 28, 2025
Reserved: Jun 19, 2023

Description

Exposed IOCTL with Insufficient Access Control in Phoenix WinFlash Driver on Windows allows Privilege Escalation which allows for modification of system firmware.This issue affects WinFlash Driver: before 4.5.0.0.

Scores

CVSS	Score	Vector	Source
3.1	7.8 High	CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H	Phoenix

Weaknesses

CWE-732 Incorrect Permission Assignment for Critical Resource
CWE-782 Exposed IOCTL with Insufficient Access Control

Affected Products

Product	Versions
WinFlash DriverPhoenix	before 4.5.0.0Affected

References

https://phoenixtech.com/phoenix-security-notifications/cve-2023-35841/
https://blogs.vmware.com/security/2023/10/hunting-vulnerable-kernel-drivers.html
https://jvn.jp/en/vu/JVNVU93886750/index.html
https://www.phoenix.com/security-notifications/cve-2023-35841/

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