CVE-2023-35841

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.

CVSS v3.1

7.8 HIGHCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

EPSS

0.35% chance of exploitation in the next 30 days, 28th percentile

Published

2024-05-14

Updated

2025-07-28

Proof-of-concept exploits (1)

• https://blogs.vmware.com/security/2023/10/hunting-vulnerable-kernel-drivers.html

References

• CVE Record
• NVD entry

Related

• CVE-2023-35840
• CVE-2023-35843
• CVE-2023-35839
• CVE-2023-35844
• CVE-2023-35829
• CVE-2023-35861