{ "document": { "acknowledgments": [ { "names": [ "Anonymous" ] } ], "aggregate_severity": { "namespace": "https://www.microsoft.com/en-us/msrc/security-update-severity-rating-system", "text": "Critical" }, "category": "csaf_security_advisory", "csaf_version": "2.0", "distribution": { "text": "Public", "tlp": { "label": "WHITE", "url": "https://www.first.org/tlp/" } }, "lang": "en-US", "notes": [ { "category": "general", "text": "To determine the support lifecycle for your software, see the Microsoft Support Lifecycle: https://support.microsoft.com/lifecycle", "title": "Additional Resources" }, { "category": "legal_disclaimer", "text": "The information provided in the Microsoft Knowledge Base is provided \\\"as is\\\" without warranty of any kind. Microsoft disclaims all warranties, either express or implied, including the warranties of merchantability and fitness for a particular purpose. In no event shall Microsoft Corporation or its suppliers be liable for any damages whatsoever including direct, indirect, incidental, consequential, loss of business profits or special damages, even if Microsoft Corporation or its suppliers have been advised of the possibility of such damages. Some states do not allow the exclusion or limitation of liability for consequential or incidental damages so the foregoing limitation may not apply.", "title": "Disclaimer" }, { "category": "general", "text": "Required. The vulnerability documented by this CVE requires customer action to resolve.", "title": "Customer Action" } ], "publisher": { "category": "vendor", "contact_details": "secure@microsoft.com", "name": "Microsoft Security Response Center", "namespace": "https://msrc.microsoft.com" }, "references": [ { "category": "self", "summary": "CVE-2026-45648 Windows Active Directory Domain Services Remote Code Execution Vulnerability - HTML", "url": "https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-45648" }, { "category": "self", "summary": "CVE-2026-45648 Windows Active Directory Domain Services Remote Code Execution Vulnerability - CSAF", "url": "https://msrc.microsoft.com/csaf/advisories/2026/msrc_cve-2026-45648.json" }, { "category": "external", "summary": "Microsoft Exploitability Index", "url": "https://www.microsoft.com/en-us/msrc/exploitability-index?rtc=1" }, { "category": "external", "summary": "Microsoft Support Lifecycle", "url": "https://support.microsoft.com/lifecycle" }, { "category": "external", "summary": "Common Vulnerability Scoring System", "url": "https://www.first.org/cvss" } ], "title": "Windows Active Directory Domain Services Remote Code Execution Vulnerability", "tracking": { "current_release_date": "2026-06-09T07:00:00.000Z", "generator": { "date": "2026-06-10T17:53:11.576Z", "engine": { "name": "MSRC Generator", "version": "1.0" } }, "id": "msrc_CVE-2026-45648", "initial_release_date": "2026-06-09T07:00:00.000Z", "revision_history": [ { "date": "2026-06-09T07:00:00.000Z", "legacy_version": "1", "number": "1", "summary": "Information published." } ], "status": "final", "version": "1" } }, "product_tree": { "branches": [ { "branches": [ { "category": "product_version_range", "name": "<10.0.20348.5256", "product": { "name": "Windows Server 2022 <10.0.20348.5256", "product_id": "4" } }, { "category": "product_version", "name": "10.0.20348.5256", "product": { "name": "Windows Server 2022 10.0.20348.5256", "product_id": "11923" } } ], "category": "product_name", "name": "Windows Server 2022" }, { "branches": [ { "category": "product_version_range", "name": "<10.0.20348.5256", "product": { "name": "Windows Server 2022 (Server Core installation) <10.0.20348.5256", "product_id": "3" } }, { "category": "product_version", "name": "10.0.20348.5256", "product": { "name": "Windows Server 2022 (Server Core installation) 10.0.20348.5256", "product_id": "11924" } } ], "category": "product_name", "name": "Windows Server 2022 (Server Core installation)" }, { "branches": [ { "category": "product_version_range", "name": "<10.0.26100.32995", "product": { "name": "Windows Server 2025 (Server Core installation) <10.0.26100.32995", "product_id": "1" } }, { "category": "product_version", "name": "10.0.26100.32995", "product": { "name": "Windows Server 2025 (Server Core installation) 10.0.26100.32995", "product_id": "12437" } } ], "category": "product_name", "name": "Windows Server 2025 (Server Core installation)" }, { "branches": [ { "category": "product_version_range", "name": "<10.0.26100.32995", "product": { "name": "Windows Server 2025 <10.0.26100.32995", "product_id": "2" } }, { "category": "product_version", "name": "10.0.26100.32995", "product": { "name": "Windows Server 2025 10.0.26100.32995", "product_id": "12436" } } ], "category": "product_name", "name": "Windows Server 2025" } ] }, "vulnerabilities": [ { "cve": "CVE-2026-45648", "cwe": { "id": "CWE-121", "name": "Stack-based Buffer Overflow" }, "notes": [ { "category": "general", "text": "Microsoft", "title": "Assigning CNA" }, { "category": "faq", "text": "A domain‑authenticated attacker with access to the NSPI RPC interface can provide crafted inputs that trigger an out‑of‑bounds write in the directory service process, leading to memory corruption/remote code execution.", "title": "How could an attacker exploit this vulnerability?" }, { "category": "faq", "text": "Any authenticated attacker could trigger this vulnerability. It does not require admin or other elevated privileges.", "title": "According to the CVSS metric, privileges required is low (PR:L). What does that mean for this vulnerability?" }, { "category": "faq", "text": "An attacker who successfully exploits this vulnerability could achieve remote code execution without user interaction.", "title": "How could an attacker exploit the vulnerability?" } ], "product_status": { "fixed": [ "11923", "11924", "12436", "12437" ], "known_affected": [ "1", "2", "3", "4" ] }, "references": [ { "category": "self", "summary": "CVE-2026-45648 Windows Active Directory Domain Services Remote Code Execution Vulnerability - HTML", "url": "https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-45648" }, { "category": "self", "summary": "CVE-2026-45648 Windows Active Directory Domain Services Remote Code Execution Vulnerability - CSAF", "url": "https://msrc.microsoft.com/csaf/advisories/2026/msrc_cve-2026-45648.json" } ], "remediations": [ { "category": "vendor_fix", "date": "2026-06-09T07:00:00.000Z", "details": "10.0.20348.5256:Security Update:https://support.microsoft.com/help/5094128", "product_ids": [ "4", "3" ], "url": "https://support.microsoft.com/help/5094128" }, { "category": "vendor_fix", "date": "2026-06-09T07:00:00.000Z", "details": "10.0.26100.32995:Security Update:https://support.microsoft.com/help/5094125", "product_ids": [ "1", "2" ], "url": "https://support.microsoft.com/help/5094125" } ], "scores": [ { "cvss_v3": { "attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "HIGH", "baseScore": 8.8, "baseSeverity": "HIGH", "confidentialityImpact": "HIGH", "environmentalsScore": 0.0, "exploitCodeMaturity": "UNPROVEN", "integrityImpact": "HIGH", "privilegesRequired": "LOW", "remediationLevel": "OFFICIAL_FIX", "reportConfidence": "CONFIRMED", "scope": "UNCHANGED", "temporalScore": 7.7, "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C", "version": "3.1" }, "products": [ "1", "2", "3", "4" ] } ], "threats": [ { "category": "impact", "details": "Remote Code Execution" }, { "category": "exploit_status", "details": "Publicly Disclosed:No;Exploited:No;Latest Software Release:Exploitation Unlikely" } ], "title": "Windows Active Directory Domain Services Remote Code Execution Vulnerability" } ] }