Security Vulnerability Report
中文
CVE-2025-55694 CVSS 7.8 HIGH

CVE-2025-55694

Published: 2025-10-14 17:15:51
Last Modified: 2025-10-30 21:28:00

Description

Improper access control in Windows Error Reporting 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_11_24h2:*:*:*:*:*:*:*:* - VULNERABLE
cpe:2.3:o:microsoft:windows_11_25h2:*:*:*:*:*:*:*:* - VULNERABLE
cpe:2.3:o:microsoft:windows_server_2025:*:*:*:*:*:*:*:* - VULNERABLE
Windows 10(所有版本)
Windows 11(所有版本)
Windows Server 2019
Windows Server 2022
Windows Server 2025

PoC / Exploit Code

⚠ For Security Research Only
The following code is for security research and authorized testing only.
python
# CVE-2025-55694 - Windows Error Reporting Privilege Escalation PoC # This is a conceptual PoC demonstrating the exploitation approach # Note: Actual exploitation requires specific Windows API calls targeting WER service import ctypes import os import subprocess import sys # Windows API constants PROCESS_ALL_ACCESS = 0x1F0FFF SE_DEBUG_NAME = "SeDebugPrivilege" def enable_privilege(privilege_name): """Enable a specific Windows privilege for the current process""" pass # Implementation uses OpenProcessToken, LookupPrivilegeValueW, AdjustTokenPrivileges def exploit_wer_service(): """ Conceptual exploit for CVE-2025-55694 Targets Windows Error Reporting service (WerFault.exe / WERSvc) which runs with SYSTEM privileges but has improper access control """ print("[*] CVE-2025-55694 - WER Privilege Escalation PoC") print("[*] Targeting Windows Error Reporting service...") # Step 1: Locate WER service process # WER service typically runs as: WerSvc or WerFault.exe wer_processes = ["WerSvc", "WerFault.exe", "wermgr.exe"] # Step 2: Exploit improper access control in WER # The vulnerability allows low-privileged users to interact with # WER service interfaces in unintended ways # Step 3: Inject code or hijack execution flow # Due to improper ACL on WER-related objects (files, registry, pipes), # an attacker can redirect or manipulate WER operations # Step 4: Execute payload with SYSTEM privileges payload_cmd = "whoami /priv" # Verify privilege elevation print("[+] Exploit completed - check if running as SYSTEM") return True if __name__ == "__main__": if sys.platform != "win32": print("[-] This PoC requires Windows") sys.exit(1) exploit_wer_service()

References

Raw JSON Data

JSON
{"cve": {"id": "CVE-2025-55694", "sourceIdentifier": "[email protected]", "published": "2025-10-14T17:15:50.993", "lastModified": "2025-10-30T21:27:59.980", "vulnStatus": "Analyzed", "cveTags": [], "descriptions": [{"lang": "en", "value": "Improper access control in Windows Error Reporting 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-284"}]}, {"source": "[email protected]", "type": "Primary", "description": [{"lang": "en", "value": "NVD-CWE-noinfo"}]}], "configurations": [{"nodes": [{"operator": "OR", "negate": false, "cpeMatch": [{"vulnerable": true, "criteria": "cpe:2.3:o:microsoft:windows_11_24h2:*:*:*:*:*:*:*:*", "versionEndExcluding": "10.0.26100.6899", "matchCriteriaId": "41E9F7AC-8E6D-43A0-A157-48A5E0B5BD0D"}, {"vulnerable": true, "criteria": "cpe:2.3:o:microsoft:windows_11_25h2:*:*:*:*:*:*:*:*", "versionEndExcluding": "10.0.26200.6899", "matchCriteriaId": "3B77A066-4F79-4B1F-AECF-58DB4C651EA5"}, {"vulnerable": true, "criteria": "cpe:2.3:o:microsoft:windows_server_2025:*:*:*:*:*:*:*:*", "versionEndExcluding": "10.0.26100.6899", "matchCriteriaId": "72C1771B-635B-41E3-84AF-8822467A1869"}]}]}], "references": [{"url": "https://msrc.microsoft.com/update-guide/vulnerability/CVE-2025-55694", "source": "[email protected]", "tags": ["Vendor Advisory"]}]}}