CVE-2024-43574 Microsoft Speech Application Programming Interface (SAPI) Remote Code Execution Vulnerability
An attacker can execute arbitrary code via a use-after-free vulnerability in the Microsoft Speech Application Programming Interface on Windows.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- A user has to click or open something
- Fix
- None listed
What is CVE-2024-43574?
CVE-2024-43574 is a high-severity use after free vulnerability in Microsoft Windows 10 21h2, published on 8 Oct 2024. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link.
Official description
Microsoft Speech Application Programming Interface (SAPI) Remote Code Execution Vulnerability
Weakness: CWE-416
Which versions are affected by CVE-2024-43574?
It affects 8 products.
Products include Microsoft Windows 10 21h2, Microsoft Windows 10 22h2, Microsoft Windows 11 21h2, Microsoft Windows 11 22h2, Microsoft Windows 11 23h2, Microsoft Windows 11 24h2 and 2 more.
How do I fix CVE-2024-43574?
No fix has been published for CVE-2024-43574 yet. Limit exposure of the affected software until one is available.
Upgrade to the fixed version. These bugs are found with fuzzing and sanitisers and avoided by memory-safe languages. More about Use after free.
Is CVE-2024-43574 being exploited?
There is no known exploitation of CVE-2024-43574 in the wild and no public exploit code.
Other vulnerabilities in Microsoft Windows 10 21h2
- CVE-2025-21333 Microsoft Windows Hyper-V NT Kernel Integration VSP Heap-based Buffer Overflow
- CVE-2025-21334 Microsoft Windows Hyper-V NT Kernel Integration VSP Use-After-Free
- CVE-2025-21335 Microsoft Windows Hyper-V NT Kernel Integration VSP Use-After-Free
- CVE-2026-42904 Windows TCP/IP Elevation of Privilege Vulnerability
- CVE-2026-105733 Windows Hyper-V Remote Code Execution Vulnerability
Sources
Also known as GHSA-mxp9-jv89-xf8h.