Input validation error in Microsoft Windows - CVE-2023-38146
Published: September 13, 2023 / Updated: January 4, 2024
Vulnerability identifier: #VU80712
CSH Severity: High
CVSS v4: 8.6 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N]
CVE-ID: CVE-2023-38146
CWE-ID: CWE-20
Exploitation vector: Remote access
Exploit availability:
The vulnerability is being exploited in the wild
Vulnerability details
The vulnerability allows a remote attacker to execute arbitrary code on the system.
The vulnerability exists due to insufficient validation of user-supplied input in Windows Themes. A remote attacker can trick a victim to open a specially crafted file and execute arbitrary code on the target system.
Affected software
Microsoft Windows
How to mitigate CVE-2023-38146
Install updates from vendor's website.
Links to Public Exploits and PoC-codes
- Exploit #9480 - Themebleed- Windows 11 Themes Arbitrary Code Execution CVE-2023-38146 (January 4, 2024)
- Exploit #9453 - CVE-2023-38146 (PoC for the ThemeBleed Windows 11 CVE-2023-38146 written in python using impacket. https://jnns.de/posts/cve-2023-38146-poc/) (December 21, 2023)
- Exploit #9347 - themebleed (Proof-of-Concept for CVE-2023-38146 ("ThemeBleed")) (September 24, 2023)