Based on the user's request, I need to extract key vulnerability information from the provided webpage screenshot and summarize it in concise Chinese markdown format. 1. Vulnerability Overview: Title: Cesanta Mongoose 7.20 Heap-based Buffer Overflow Description: This is a heap buffer overflow vulnerability in Mongoose v7.20 TLS 1.3 implementation that can be exploited for Remote Code Execution (RCE). Specific Location: In the function, when parsing the RSA public key modulus of a client certificate, key data is copied into a fixed-size buffer without bounds checking. Impact: An attacker can overwrite arbitrary addresses in heap memory within the structure by providing a forged X.509 certificate containing an oversized RSA modulus, thereby gaining code execution. Specifically, the field is a 528-byte buffer located within the structure. An oversized RSA modulus from an attacker-supplied X.509 certificate can overwrite the field, subsequently overwriting the structure within the structure. When fails (due to CA verification failure), Mongoose calls , resulting in a jump to attacker-controlled shellcode. 2. Affected Scope: Software: Cesanta Mongoose Version: v7.20 TLS 1.3 implementation (specifically mentioned commit on the branch) Link: https://github.com/cesanta/mongoose/blob/master/mongoose.c#L14197 3. Fix/Mitigation: The page mentions "Vendor contacted Feb 26 and CONFIRMED the vulnerability." The vendor was contacted on February 26 and confirmed the vulnerability, but no specific patch or fixed version is listed in the screenshot. This typically means waiting for an official update or rolling back to a previous version. 4. POC/Exploit Code: The screenshot contains a C code snippet demonstrating the vulnerability trigger logic. I need to extract this code in full. Extracted Code Block:**