Security Vulnerability Report
中文
CVE-2025-62470 CVSS 7.8 HIGH

CVE-2025-62470

Published: 2025-12-09 18:15:59
Last Modified: 2025-12-12 20:04:18

Description

Heap-based buffer overflow in Windows Common Log File System Driver allows an authorized attacker to elevate privileges locally.

CVSS Details

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

Configurations (Affected Products)

cpe:2.3:o:microsoft:windows_10_1607:*:*:*:*:*:*:x64:* - VULNERABLE
cpe:2.3:o:microsoft:windows_10_1607:*:*:*:*:*:*:x86:* - VULNERABLE
cpe:2.3:o:microsoft:windows_10_1809:*:*:*:*:*:*:x64:* - VULNERABLE
cpe:2.3:o:microsoft:windows_10_1809:*:*:*:*:*:*:x86:* - VULNERABLE
cpe:2.3:o:microsoft:windows_10_21h2:*:*:*:*:*:*:*:* - VULNERABLE
Windows 10 version 1507
Windows 10 version 1607
Windows 10 version 1703
Windows 10 version 1803
Windows 10 version 1809
Windows 10 version 1903
Windows 10 version 1909
Windows 10 version 2004
Windows 10 version 20H2
Windows 10 version 21H1
Windows 10 version 21H2
Windows 10 version 22H2
Windows 11 version 21H2
Windows 11 version 22H2
Windows 11 version 23H2
Windows Server 2016
Windows Server 2019
Windows Server 2022

PoC / Exploit Code

⚠ For Security Research Only
The following code is for security research and authorized testing only.
python
// CVE-2025-62470 PoC - Windows CLFS Driver Heap Overflow // This is a conceptual PoC for educational purposes only #include <windows.h> #include <stdio.h> // CLFS log file structures would be defined here // The PoC would need to: // 1. Open or create a CLFS log file // 2. Manipulate log record structures to trigger overflow // 3. Overwrite heap metadata to achieve arbitrary write // 4. Use kernel payload to escalate privileges int main() { printf("CVE-2025-62470 PoC\n"); printf("Target: Windows CLFS Driver (clfs.sys)\n"); printf("Vulnerability: Heap-based buffer overflow\n"); printf("Impact: Local privilege escalation\n"); // Note: Actual exploitation requires: // - Detailed knowledge of CLFS internal structures // - Heap spray techniques for kernel pool // - Kernel payload development // - Bypassing kernel security mitigations (KASLR, SMEP, etc.) printf("\nThis vulnerability requires careful heap grooming"); printf("and precise overflow control to achieve code execution.\n"); return 0; }

References

Raw JSON Data

JSON
{"cve": {"id": "CVE-2025-62470", "sourceIdentifier": "[email protected]", "published": "2025-12-09T18:15:59.227", "lastModified": "2025-12-12T20:04:17.790", "vulnStatus": "Analyzed", "cveTags": [], "descriptions": [{"lang": "en", "value": "Heap-based buffer overflow in Windows Common Log File System Driver allows an authorized attacker to elevate privileges locally."}], "metrics": {"cvssMetricV31": [{"source": "[email protected]", "type": "Secondary", "cvssData": {"version": "3.1", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H", "baseScore": 7.8, "baseSeverity": "HIGH", "attackVector": "LOCAL", "attackComplexity": "LOW", "privilegesRequired": "LOW", "userInteraction": "NONE", "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-122"}]}], "configurations": [{"nodes": [{"operator": "OR", "negate": false, "cpeMatch": [{"vulnerable": true, "criteria": "cpe:2.3:o:microsoft:windows_10_1607:*:*:*:*:*:*:x64:*", "versionEndExcluding": "10.0.14393.8688", "matchCriteriaId": "B1A4A63C-AA10-4A4B-8FD6-0519D1F7DFE9"}, {"vulnerable": true, "criteria": "cpe:2.3:o:microsoft:windows_10_1607:*:*:*:*:*:*:x86:*", "versionEndExcluding": "10.0.14393.8688", "matchCriteriaId": "BCB3A273-FB6E-43DC-A247-363179C2400C"}, {"vulnerable": true, "criteria": "cpe:2.3:o:microsoft:windows_10_1809:*:*:*:*:*:*:x64:*", "versionEndExcluding": "10.0.17763.8146", "matchCriteriaId": "5CEB496A-8AF3-458D-B466-16204E535DE0"}, {"vulnerable": true, "criteria": "cpe:2.3:o:microsoft:windows_10_1809:*:*:*:*:*:*:x86:*", "versionEndExcluding": "10.0.17763.8146", "matchCriteriaId": "C99D0580-E443-4440-A211-19BA3C2C4AFA"}, {"vulnerable": true, "criteria": "cpe:2.3:o:microsoft:windows_10_21h2:*:*:*:*:*:*:*:*", "versionEndExcluding": "10.0.19044.6691", "matchCriteriaId": "9D04167A-522C-433E-8CEB-C1D8A02C23D8"}, {"vulnerable": true, "criteria": "cpe:2.3:o:microsoft:windows_10_22h2:*:*:*:*:*:*:*:*", "versionEndExcluding": "10.0.19045.6691", "matchCriteriaId": "A86D6CDC-55E5-4817-A6CE-4CE41921FB79"}, {"vulnerable": true, "criteria": "cpe:2.3:o:microsoft:windows_11_23h2:*:*:*:*:*:*:*:*", "versionEndExcluding": "10.0.22631.6345", "matchCriteriaId": "6DCE32D0-A9E0-4029-AB35-5E202A42AF01"}, {"vulnerable": true, "criteria": "cpe:2.3:o:microsoft:windows_11_24h2:*:*:*:*:*:*:*:*", "versionEndExcluding": "10.0.26100.7392", "matchCriteriaId": "8DCD2A6E-7CD0-4FCC-AC11-5A1470776C24"}, {"vulnerable": true, "criteria": "cpe:2.3:o:microsoft:windows_11_25h2:*:*:*:*:*:*:*:*", "versionEndExcluding": "10.0.26200.7392", "matchCriteriaId": "8EA08CDD-D682-403D-8B50-879EB4D88C67"}, {"vulnerable": true, "criteria": "cpe:2.3:o:microsoft:windows_server_2008:-:sp2:*:*:*:*:x64:*", "matchCriteriaId": "2127D10C-B6F3-4C1D-B9AA-5D78513CC996"}, {"vulnerable": true, "criteria": "cpe:2.3:o:microsoft:windows_server_2008:-:sp2:*:*:*:*:x86:*", "matchCriteriaId": "AB425562-C0A0-452E-AABE-F70522F15E1A"}, {"vulnerable": true, "criteria": "cpe:2.3:o:microsoft:windows_server_2008:r2:sp1:*:*:*:*:x64:*", "matchCriteriaId": "AF07A81D-12E5-4B1D-BFF9-C8D08C32FF4F"}, {"vulnerable": true, "criteria": "cpe:2.3:o:microsoft:windows_server_2012:-:*:*:*:*:*:*:*", "matchCriteriaId": "A7DF96F8-BA6A-4780-9CA3-F719B3F81074"}, {"vulnerable": true, "criteria": "cpe:2.3:o:microsoft:windows_server_2012:r2:*:*:*:*:*:*:*", "matchCriteriaId": "DB18C4CE-5917-401E-ACF7-2747084FD36E"}, {"vulnerable": true, "criteria": "cpe:2.3:o:microsoft:windows_server_2016:*:*:*:*:*:*:*:*", "versionEndExcluding": "10.0.14393.8688", "matchCriteriaId": "992FE0C2-27E6-4D04-8200-7831DE13C58E"}, {"vulnerable": true, "criteria": "cpe:2.3:o:microsoft:windows_server_2019:*:*:*:*:*:*:*:*", "versionEndExcluding": "10.0.17763.8146", "matchCriteriaId": "A20DBDB1-D0DE-4800-8BEA-35EE5D53659D"}, {"vulnerable": true, "criteria": "cpe:2.3:o:microsoft:windows_server_2022:*:*:*:*:*:*:*:*", "versionEndExcluding": "10.0.20348.4467", "matchCriteriaId": "C552FBB4-8F98-492E-A084-AF14C9514A67"}, {"vulnerable": true, "criteria": "cpe:2.3:o:microsoft:windows_server_2022_23h2:*:*:*:*:*:*:*:*", "versionEndExcluding": "10.0.25398.2025", "matchCriteriaId": "E9CE4A36-DA42-40CC-8724-E30A22CA84B6"}, {"vulnerable": true, "criteria": "cpe:2.3:o:microsoft:windows_server_2025:*:*:*:*:*:*:*:*", "versionEndExcluding": "10.0.26100.7392", "matchCriteriaId": "35BBEADA-D039-479B-A1BA-B2A7E37235BE"}]}]}], "references": [{"url": "https://msrc.microsoft.com/update-guide/vulnerability/CVE-2025-62470", "source": "[email protected]", "tags": ["Vendor Advisory"]}]}}