CVE-2023-35841
WinFlash Driver Permissions Issue
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.
INFO
Published Date :
May 14, 2024, 4:15 p.m.
Last Modified :
Sept. 25, 2025, 5:10 p.m.
Remotely Exploit :
No
Source :
22d9ba52-f336-4b0d-bf1f-0efbdcc3c1de
CVSS Scores
| Score | Version | Severity | Vector | Exploitability Score | Impact Score | Source |
|---|---|---|---|---|---|---|
| CVSS 3.1 | HIGH | 22d9ba52-f336-4b0d-bf1f-0efbdcc3c1de |
References to Advisories, Solutions, and Tools
Here, you will find a curated list of external links that provide in-depth
information, practical solutions, and valuable tools related to
CVE-2023-35841.
| URL | Resource |
|---|---|
| https://blogs.vmware.com/security/2023/10/hunting-vulnerable-kernel-drivers.html | Exploit Third Party Advisory |
| https://jvn.jp/en/vu/JVNVU93886750/index.html | Third Party Advisory |
| https://phoenixtech.com/phoenix-security-notifications/cve-2023-35841/ | Vendor Advisory |
| https://blogs.vmware.com/security/2023/10/hunting-vulnerable-kernel-drivers.html | Exploit Third Party Advisory |
| https://jvn.jp/en/vu/JVNVU93886750/index.html | Third Party Advisory |
| https://www.phoenix.com/security-notifications/cve-2023-35841/ | Vendor Advisory |
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2023-35841 is
associated with the following CWEs:
Common Attack Pattern Enumeration and Classification (CAPEC)
Common Attack Pattern Enumeration and Classification
(CAPEC)
stores attack patterns, which are descriptions of the common attributes and
approaches employed by adversaries to exploit the CVE-2023-35841
weaknesses.
We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).
Results are limited to the first 15 repositories due to potential performance issues.
The following list is the news that have been mention
CVE-2023-35841 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2023-35841 vulnerability over time.
Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.
-
Initial Analysis by [email protected]
Sep. 25, 2025
Action Type Old Value New Value Added CPE Configuration OR *cpe:2.3:a:phoenixtech:winflash:*:*:*:*:*:windows:*:* versions up to (excluding) 4.5.0.0 Added Reference Type Phoenix Technologies, Inc.: https://blogs.vmware.com/security/2023/10/hunting-vulnerable-kernel-drivers.html Types: Exploit, Third Party Advisory Added Reference Type CVE: https://blogs.vmware.com/security/2023/10/hunting-vulnerable-kernel-drivers.html Types: Exploit, Third Party Advisory Added Reference Type Phoenix Technologies, Inc.: https://jvn.jp/en/vu/JVNVU93886750/index.html Types: Third Party Advisory Added Reference Type CVE: https://jvn.jp/en/vu/JVNVU93886750/index.html Types: Third Party Advisory Added Reference Type Phoenix Technologies, Inc.: https://phoenixtech.com/phoenix-security-notifications/cve-2023-35841/ Types: Vendor Advisory Added Reference Type CVE: https://www.phoenix.com/security-notifications/cve-2023-35841/ Types: Vendor Advisory -
CVE Modified by 22d9ba52-f336-4b0d-bf1f-0efbdcc3c1de
Jul. 28, 2025
Action Type Old Value New Value Changed 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. 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. Added Reference https://phoenixtech.com/phoenix-security-notifications/cve-2023-35841/ Removed Reference https://www.phoenix.com/security-notifications/cve-2023-35841/ -
CVE Modified by af854a3a-2127-422b-91ae-364da2661108
Nov. 21, 2024
Action Type Old Value New Value Added Reference https://blogs.vmware.com/security/2023/10/hunting-vulnerable-kernel-drivers.html Added Reference https://jvn.jp/en/vu/JVNVU93886750/index.html Added Reference https://www.phoenix.com/security-notifications/cve-2023-35841/ -
CVE Received by 22d9ba52-f336-4b0d-bf1f-0efbdcc3c1de
May. 14, 2024
Action Type Old Value New Value Added 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. Added Reference Phoenix Technologies, Inc. https://www.phoenix.com/security-notifications/cve-2023-35841/ [No types assigned] Added Reference Phoenix Technologies, Inc. https://blogs.vmware.com/security/2023/10/hunting-vulnerable-kernel-drivers.html [No types assigned] Added Reference Phoenix Technologies, Inc. https://jvn.jp/en/vu/JVNVU93886750/index.html [No types assigned] Added CWE Phoenix Technologies, Inc. CWE-732 Added CWE Phoenix Technologies, Inc. CWE-782 Added CVSS V3.1 Phoenix Technologies, Inc. AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H