{
"document": {
"acknowledgments": [
{
"names": [
"nhienit with Galaxy One"
]
}
],
"aggregate_severity": {
"namespace": "https://www.microsoft.com/en-us/msrc/security-update-severity-rating-system",
"text": "Important"
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"category": "csaf_security_advisory",
"csaf_version": "2.0",
"distribution": {
"text": "Public",
"tlp": {
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"url": "https://www.first.org/tlp/"
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"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-2026-40375 Microsoft Dynamics Business Central Information Disclosure Vulnerability - HTML",
"url": "https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-40375"
},
{
"category": "self",
"summary": "CVE-2026-40375 Microsoft Dynamics Business Central Information Disclosure Vulnerability - CSAF",
"url": "https://msrc.microsoft.com/csaf/advisories/2026/msrc_cve-2026-40375.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": "Microsoft Dynamics Business Central Information Disclosure Vulnerability",
"tracking": {
"current_release_date": "2026-08-11T07:00:00.000Z",
"generator": {
"date": "2026-08-31T20:04:03.875Z",
"engine": {
"name": "MSRC Generator",
"version": "1.0"
}
},
"id": "msrc_CVE-2026-40375",
"initial_release_date": "2026-08-11T07:00:00.000Z",
"revision_history": [
{
"date": "2026-08-11T07:00:00.000Z",
"legacy_version": "1",
"number": "1",
"summary": "Information published."
}
],
"status": "final",
"version": "1"
}
},
"product_tree": {
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{
"branches": [
{
"branches": [
{
"category": "product_version_range",
"name": "<26.0.50788",
"product": {
"name": "Microsoft Dynamics 365 Business Central Release Wave 1 2025 <26.0.50788",
"product_id": "3"
}
},
{
"category": "product_version",
"name": "26.0.50788",
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}
],
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{
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{
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],
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"product_id": "2"
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},
{
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}
],
"category": "product_name",
"name": "Microsoft Dynamics 365 Business Central Release Wave 2 2025"
}
],
"category": "vendor",
"name": "Microsoft"
}
]
},
"vulnerabilities": [
{
"cve": "CVE-2026-40375",
"cwe": {
"id": "CWE-862",
"name": "Missing Authorization"
},
"notes": [
{
"category": "general",
"text": "Microsoft",
"title": "Assigning CNA"
},
{
"category": "faq",
"text": "Exploiting this vulnerability could allow the disclosure of credentials.",
"title": "What type of information could be disclosed by this vulnerability?"
},
{
"category": "faq",
"text": "Version 25.x has reached the end of support and will not receive a security update for this vulnerability. Customers should upgrade to version 26.14 or later; see the Dynamics 365 Business Central on-premises lifecycle policy and KB 5100263 for more information.",
"title": "What action should customers using Microsoft Dynamics 365 Business Central 2024 Release Wave 2 (version 25.x) take?"
}
],
"product_status": {
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"21325",
"21326",
"21327"
],
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"3",
"4"
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},
"references": [
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},
{
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"url": "https://msrc.microsoft.com/csaf/advisories/2026/msrc_cve-2026-40375.json"
}
],
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],
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},
{
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{
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}
],
"scores": [
{
"cvss_v3": {
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"attackVector": "NETWORK",
"availabilityImpact": "NONE",
"baseScore": 6.5,
"baseSeverity": "MEDIUM",
"confidentialityImpact": "HIGH",
"exploitCodeMaturity": "UNPROVEN",
"integrityImpact": "NONE",
"privilegesRequired": "LOW",
"remediationLevel": "OFFICIAL_FIX",
"reportConfidence": "CONFIRMED",
"scope": "UNCHANGED",
"temporalScore": 5.7,
"userInteraction": "NONE",
"vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N/E:U/RL:O/RC:C",
"version": "3.1"
},
"products": [
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"4"
]
}
],
"threats": [
{
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"details": "Information Disclosure"
},
{
"category": "exploit_status",
"details": "Publicly Disclosed:No;Exploited:No;Latest Software Release:Exploitation Less Likely"
}
],
"title": "Microsoft Dynamics Business Central Information Disclosure Vulnerability"
}
]
}