CVE-2026-40417 (GCVE-0-2026-40417)

Vulnerability from cvelistv5 – Published: 2026-05-12 16:58 – Updated: 2026-05-26 16:56
VLAI
Title
Microsoft Dynamics 365 Business Central Elevation of Privilege Vulnerability
Summary
Weak authentication in Dynamics Business Central allows an authorized attacker to elevate privileges locally.
CWE
Assigner
References
Date Public
2026-05-12 14:00
Show details on NVD website

{
  "containers": {
    "adp": [
      {
        "metrics": [
          {
            "other": {
              "content": {
                "id": "CVE-2026-40417",
                "options": [
                  {
                    "Exploitation": "none"
                  },
                  {
                    "Automatable": "no"
                  },
                  {
                    "Technical Impact": "total"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2026-05-13T03:56:28.143764Z",
                "version": "2.0.3"
              },
              "type": "ssvc"
            }
          }
        ],
        "providerMetadata": {
          "dateUpdated": "2026-05-13T10:11:00.219Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
        },
        "title": "CISA ADP Vulnrichment"
      }
    ],
    "cna": {
      "affected": [
        {
          "product": "Microsoft Dynamics 365 Business Central 2024 Release Wave 2",
          "vendor": "Microsoft",
          "versions": [
            {
              "lessThan": "25.18",
              "status": "affected",
              "version": "25.0",
              "versionType": "custom"
            }
          ]
        },
        {
          "product": "Microsoft Dynamics 365 Business Central 2026 Release Wave 1",
          "vendor": "Microsoft",
          "versions": [
            {
              "lessThan": "28.1",
              "status": "affected",
              "version": "28.0",
              "versionType": "custom"
            }
          ]
        },
        {
          "product": "Microsoft Dynamics 365 Business Central Release Wave 1 2025",
          "vendor": "Microsoft",
          "versions": [
            {
              "lessThan": "26.12",
              "status": "affected",
              "version": "26.0",
              "versionType": "custom"
            }
          ]
        },
        {
          "product": "Microsoft Dynamics 365 Business Central Release Wave 2 2025",
          "vendor": "Microsoft",
          "versions": [
            {
              "lessThan": "27.6",
              "status": "affected",
              "version": "27.0",
              "versionType": "custom"
            }
          ]
        }
      ],
      "cpeApplicability": [
        {
          "nodes": [
            {
              "cpeMatch": [
                {
                  "criteria": "cpe:2.3:a:microsoft:dynamics_365_business_central_2026:*:release_wave_1:*:*:*:*:*:*",
                  "versionEndExcluding": "28.1",
                  "versionStartIncluding": "28.0",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:a:microsoft:dynamics_365_business_central_2025:*:release_wave_1:*:*:*:*:*:*",
                  "versionEndExcluding": "26.12",
                  "versionStartIncluding": "26.0",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:a:microsoft:dynamics_365_business_central_2025:*:release_wave_2:*:*:*:*:*:*",
                  "versionEndExcluding": "27.6",
                  "versionStartIncluding": "27.0",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:a:microsoft:dynamics_365_business_central_2024:*:release_wave_2:*:*:*:*:*:*",
                  "versionEndExcluding": "25.18",
                  "versionStartIncluding": "25.0",
                  "vulnerable": true
                }
              ],
              "negate": false,
              "operator": "OR"
            }
          ]
        }
      ],
      "datePublic": "2026-05-12T14:00:00.000Z",
      "descriptions": [
        {
          "lang": "en-US",
          "value": "Weak authentication in Dynamics Business Central allows an authorized attacker to elevate privileges locally."
        }
      ],
      "metrics": [
        {
          "cvssV3_1": {
            "baseScore": 7.8,
            "baseSeverity": "HIGH",
            "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C",
            "version": "3.1"
          },
          "format": "CVSS",
          "scenarios": [
            {
              "lang": "en-US",
              "value": "GENERAL"
            }
          ]
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "cweId": "CWE-1390",
              "description": "CWE-1390: Weak Authentication",
              "lang": "en-US",
              "type": "CWE"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-05-26T16:56:25.359Z",
        "orgId": "f38d906d-7342-40ea-92c1-6c4a2c6478c8",
        "shortName": "microsoft"
      },
      "references": [
        {
          "name": "Microsoft Dynamics 365 Business Central Elevation of Privilege Vulnerability",
          "tags": [
            "vendor-advisory",
            "patch"
          ],
          "url": "https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-40417"
        }
      ],
      "title": "Microsoft Dynamics 365 Business Central Elevation of Privilege Vulnerability"
    }
  },
  "cveMetadata": {
    "assignerOrgId": "f38d906d-7342-40ea-92c1-6c4a2c6478c8",
    "assignerShortName": "microsoft",
    "cveId": "CVE-2026-40417",
    "datePublished": "2026-05-12T16:58:47.393Z",
    "dateReserved": "2026-04-13T00:27:50.798Z",
    "dateUpdated": "2026-05-26T16:56:25.359Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2",
  "vulnerability-lookup:meta": {
    "epss": {
      "cve": "CVE-2026-40417",
      "date": "2026-05-27",
      "epss": "0.00045",
      "percentile": "0.14141"
    },
    "nvd": "{\"cve\":{\"id\":\"CVE-2026-40417\",\"sourceIdentifier\":\"secure@microsoft.com\",\"published\":\"2026-05-12T18:17:19.817\",\"lastModified\":\"2026-05-13T15:34:52.573\",\"vulnStatus\":\"Awaiting Analysis\",\"cveTags\":[],\"descriptions\":[{\"lang\":\"en\",\"value\":\"Weak authentication in Dynamics Business Central allows an authorized attacker to elevate privileges locally.\"}],\"metrics\":{\"cvssMetricV31\":[{\"source\":\"secure@microsoft.com\",\"type\":\"Primary\",\"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\":\"secure@microsoft.com\",\"type\":\"Primary\",\"description\":[{\"lang\":\"en\",\"value\":\"CWE-1390\"}]}],\"references\":[{\"url\":\"https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-40417\",\"source\":\"secure@microsoft.com\"}]}}",
    "vulnrichment": {
      "containers": "{\"adp\": [{\"title\": \"CISA ADP Vulnrichment\", \"metrics\": [{\"other\": {\"type\": \"ssvc\", \"content\": {\"id\": \"CVE-2026-40417\", \"role\": \"CISA Coordinator\", \"options\": [{\"Exploitation\": \"none\"}, {\"Automatable\": \"no\"}, {\"Technical Impact\": \"total\"}], \"version\": \"2.0.3\", \"timestamp\": \"2026-05-13T03:56:28.143764Z\"}}}], \"providerMetadata\": {\"orgId\": \"134c704f-9b21-4f2e-91b3-4a467353bcc0\", \"shortName\": \"CISA-ADP\", \"dateUpdated\": \"2026-05-13T10:00:54.242Z\"}}], \"cna\": {\"title\": \"Microsoft Dynamics 365 Business Central Elevation of Privilege Vulnerability\", \"metrics\": [{\"format\": \"CVSS\", \"cvssV3_1\": {\"version\": \"3.1\", \"baseScore\": 7.8, \"baseSeverity\": \"HIGH\", \"vectorString\": \"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C\"}, \"scenarios\": [{\"lang\": \"en-US\", \"value\": \"GENERAL\"}]}], \"affected\": [{\"vendor\": \"Microsoft\", \"product\": \"Microsoft Dynamics 365 Business Central 2024 Release Wave 2\", \"versions\": [{\"status\": \"affected\", \"version\": \"25.0\", \"lessThan\": \"25.18\", \"versionType\": \"custom\"}]}, {\"vendor\": \"Microsoft\", \"product\": \"Microsoft Dynamics 365 Business Central 2026 Release Wave 1\", \"versions\": [{\"status\": \"affected\", \"version\": \"28.0\", \"lessThan\": \"28.1\", \"versionType\": \"custom\"}]}, {\"vendor\": \"Microsoft\", \"product\": \"Microsoft Dynamics 365 Business Central Release Wave 1 2025\", \"versions\": [{\"status\": \"affected\", \"version\": \"26.0\", \"lessThan\": \"26.12\", \"versionType\": \"custom\"}]}, {\"vendor\": \"Microsoft\", \"product\": \"Microsoft Dynamics 365 Business Central Release Wave 2 2025\", \"versions\": [{\"status\": \"affected\", \"version\": \"27.0\", \"lessThan\": \"27.6\", \"versionType\": \"custom\"}]}], \"datePublic\": \"2026-05-12T14:00:00.000Z\", \"references\": [{\"url\": \"https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-40417\", \"name\": \"Microsoft Dynamics 365 Business Central Elevation of Privilege Vulnerability\", \"tags\": [\"vendor-advisory\", \"patch\"]}], \"descriptions\": [{\"lang\": \"en-US\", \"value\": \"Weak authentication in Dynamics Business Central allows an authorized attacker to elevate privileges locally.\"}], \"problemTypes\": [{\"descriptions\": [{\"lang\": \"en-US\", \"type\": \"CWE\", \"cweId\": \"CWE-1390\", \"description\": \"CWE-1390: Weak Authentication\"}]}], \"cpeApplicability\": [{\"nodes\": [{\"negate\": false, \"cpeMatch\": [{\"criteria\": \"cpe:2.3:a:microsoft:dynamics_365_business_central_2026:*:release_wave_1:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"28.1\", \"versionStartIncluding\": \"28.0\"}, {\"criteria\": \"cpe:2.3:a:microsoft:dynamics_365_business_central_2025:*:release_wave_1:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"26.12\", \"versionStartIncluding\": \"26.0\"}, {\"criteria\": \"cpe:2.3:a:microsoft:dynamics_365_business_central_2025:*:release_wave_2:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"27.6\", \"versionStartIncluding\": \"27.0\"}, {\"criteria\": \"cpe:2.3:a:microsoft:dynamics_365_business_central_2024:*:release_wave_2:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"25.18\", \"versionStartIncluding\": \"25.0\"}], \"operator\": \"OR\"}]}], \"providerMetadata\": {\"orgId\": \"f38d906d-7342-40ea-92c1-6c4a2c6478c8\", \"shortName\": \"microsoft\", \"dateUpdated\": \"2026-05-26T16:56:25.359Z\"}}}",
      "cveMetadata": "{\"cveId\": \"CVE-2026-40417\", \"state\": \"PUBLISHED\", \"dateUpdated\": \"2026-05-26T16:56:25.359Z\", \"dateReserved\": \"2026-04-13T00:27:50.798Z\", \"assignerOrgId\": \"f38d906d-7342-40ea-92c1-6c4a2c6478c8\", \"datePublished\": \"2026-05-12T16:58:47.393Z\", \"assignerShortName\": \"microsoft\"}",
      "dataType": "CVE_RECORD",
      "dataVersion": "5.2"
    }
  }
}


Log in or create an account to share your comment.




Tags
Taxonomy of the tags.


Loading…

Loading…

Loading…
Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.

Sightings

Author Source Type Date Other

Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
  • Confirmed: The vulnerability has been validated from an analyst's perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
  • Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
  • Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
  • Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
  • Not confirmed: The user expressed doubt about the validity of the vulnerability.
  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.


Loading…

Detection rules are retrieved from Rulezet.

Loading…

Loading…