CVE-2025-64677

Improper neutralization of input during web page generation ('cross-site scripting') in Office Out-of-Box Experience allows an unauthorized attacker to perform spoofing over a network.

CVSS v3 8.2 HIGH

8.2^/10

CVSS v3 : HIGH

Vector :

Exploitability : 3.9 / Impact : 4.2

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact LOW

Availability Impact NONE

Scope UNCHANGED

References

Link	Resource
https://msrc.microsoft.com/update-guide/vulnerability/CVE-2025-64677	Vendor Advisory

Configurations

Configuration 1 (hide)

cpe:2.3:a:microsoft:office_out-of-box_experience:-:*:*:*:*:*:*:*

History

01 Oct 2026, 16:10

Type	Values Removed	Values Added
Summary		(es) Neutralización incorrecta de la entrada durante la generación de páginas web ('cross-site scripting') en la Experiencia de Configuración Inicial de Office permite a un atacante no autorizado realizar suplantación de identidad a través de una red.

Information

Published : 2025-12-18 22:16

Updated : 2026-10-01 16:10

NVD link : CVE-2025-64677

Mitre link : CVE-2025-64677

CVE.ORG link : CVE-2025-64677

JSON object : View

Products Affected

microsoft

office_out-of-box_experience

CWE

CWE-79

Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')

{"id": "CVE-2025-64677", "cveTags": [{"tags": ["exclusively-hosted-service"], "sourceIdentifier": "secure@microsoft.com"}], "metrics": {"ssvcV203": [{"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "ssvcData": {"id": "CVE-2025-64677", "role": "CISA Coordinator", "options": [{"exploitation": "none"}, {"automatable": "yes"}, {"technicalImpact": "partial"}], "version": "2.0.3", "timestamp": "2025-12-19T15:11:48.537590Z"}}], "cvssMetricV31": [{"type": "Secondary", "source": "secure@microsoft.com", "cvssData": {"scope": "UNCHANGED", "version": "3.1", "baseScore": 8.2, "attackVector": "NETWORK", "baseSeverity": "HIGH", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:L/A:N", "integrityImpact": "LOW", "userInteraction": "NONE", "attackComplexity": "LOW", "availabilityImpact": "NONE", "privilegesRequired": "NONE", "confidentialityImpact": "HIGH"}, "impactScore": 4.2, "exploitabilityScore": 3.9}, {"type": "Primary", "source": "nvd@nist.gov", "cvssData": {"scope": "CHANGED", "version": "3.1", "baseScore": 8.2, "attackVector": "NETWORK", "baseSeverity": "HIGH", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:L/A:N", "integrityImpact": "LOW", "userInteraction": "REQUIRED", "attackComplexity": "LOW", "availabilityImpact": "NONE", "privilegesRequired": "NONE", "confidentialityImpact": "HIGH"}, "impactScore": 4.7, "exploitabilityScore": 2.8}]}, "affected": [{"source": "secure@microsoft.com", "affectedData": [{"vendor": "Microsoft", "product": "Office Out-of-Box Experience", "versions": [{"status": "affected", "version": "-"}]}]}], "published": "2025-12-18T22:16:01.077", "references": [{"url": "https://msrc.microsoft.com/update-guide/vulnerability/CVE-2025-64677", "tags": ["Vendor Advisory"], "source": "secure@microsoft.com"}], "vulnStatus": "Analyzed", "weaknesses": [{"type": "Secondary", "source": "secure@microsoft.com", "description": [{"lang": "en", "value": "CWE-79"}]}], "descriptions": [{"lang": "en", "value": "Improper neutralization of input during web page generation ('cross-site scripting') in Office Out-of-Box Experience allows an unauthorized attacker to perform spoofing over a network."}, {"lang": "es", "value": "Neutralizaci\u00f3n incorrecta de la entrada durante la generaci\u00f3n de p\u00e1ginas web ('cross-site scripting') en la Experiencia de Configuraci\u00f3n Inicial de Office permite a un atacante no autorizado realizar suplantaci\u00f3n de identidad a trav\u00e9s de una red."}], "lastModified": "2026-10-01T16:10:00.257", "configurations": [{"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:a:microsoft:office_out-of-box_experience:-:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "56FCF772-986A-4527-8CE3-B67F8B8AEA15"}], "operator": "OR"}]}], "sourceIdentifier": "secure@microsoft.com"}