Vulnerability-Lookup

FKIE_CVE-2026-44824

Vulnerability from fkie_nvd - Published: 2026-06-09 17:17 - Updated: 2026-06-17 10:51

Severity

7.8 (High) - CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

Summary

Heap-based buffer overflow in Microsoft Office allows an unauthorized attacker to execute code locally.

References

	URL	Tags
	secure@microsoft.com	https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-44824	Vendor Advisory

Impacted products

Vendor	Product	Version
microsoft	365_apps	-
microsoft	365_apps	-
microsoft	microsoft_365	-
microsoft	office_2016	-
microsoft	office_2016	-
microsoft	office_2019	-
microsoft	office_2019	-
microsoft	office_2021	-
microsoft	office_2021	-
microsoft	office_2021	-
microsoft	office_2024	-
microsoft	office_2024	-
microsoft	office_2024	-
microsoft	sharepoint_server	*
microsoft	sharepoint_server	2016
microsoft	sharepoint_server	2019

JSON

To clipboard

{
  "affected": [
    {
      "affectedData": [
        {
          "platforms": [
            "32-bit Systems",
            "x64-based Systems"
          ],
          "product": "Microsoft 365 Apps for Enterprise",
          "vendor": "Microsoft",
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            }
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          ],
          "product": "Microsoft SharePoint Server 2019",
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          "versions": [
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              "version": "16.0.0",
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            }
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        },
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          "platforms": [
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          ],
          "product": "Microsoft SharePoint Server Subscription Edition",
          "vendor": "Microsoft",
          "versions": [
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              "status": "affected",
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      ],
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    }
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              "vulnerable": true
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  ],
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "Heap-based buffer overflow in Microsoft Office allows an unauthorized attacker to execute code locally."
    }
  ],
  "id": "CVE-2026-44824",
  "lastModified": "2026-06-17T10:51:23.743",
  "metrics": {
    "cvssMetricV31": [
      {
        "cvssData": {
          "attackComplexity": "LOW",
          "attackVector": "LOCAL",
          "availabilityImpact": "HIGH",
          "baseScore": 7.8,
          "baseSeverity": "HIGH",
          "confidentialityImpact": "HIGH",
          "integrityImpact": "HIGH",
          "privilegesRequired": "NONE",
          "scope": "UNCHANGED",
          "userInteraction": "REQUIRED",
          "vectorString": "CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H",
          "version": "3.1"
        },
        "exploitabilityScore": 1.8,
        "impactScore": 5.9,
        "source": "secure@microsoft.com",
        "type": "Secondary"
      }
    ],
    "ssvcV203": [
      {
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "ssvcData": {
          "id": "CVE-2026-44824",
          "options": [
            {
              "exploitation": "none"
            },
            {
              "automatable": "no"
            },
            {
              "technicalImpact": "total"
            }
          ],
          "role": "CISA Coordinator",
          "timestamp": "2026-06-10T03:57:19.447941Z",
          "version": "2.0.3"
        }
      }
    ]
  },
  "published": "2026-06-09T17:17:18.857",
  "references": [
    {
      "source": "secure@microsoft.com",
      "tags": [
        "Vendor Advisory"
      ],
      "url": "https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-44824"
    }
  ],
  "sourceIdentifier": "secure@microsoft.com",
  "vulnStatus": "Analyzed",
  "weaknesses": [
    {
      "description": [
        {
          "lang": "en",
          "value": "CWE-122"
        }
      ],
      "source": "secure@microsoft.com",
      "type": "Secondary"
    }
  ]
}

CVE-2026-44824 (GCVE-0-2026-44824)

Vulnerability from cvelistv5 – Published: 2026-06-09 17:04 – Updated: 2026-06-17 16:26

Title

Microsoft Office Remote Code Execution Vulnerability

Summary

Heap-based buffer overflow in Microsoft Office allows an unauthorized attacker to execute code locally.

Severity

7.8 (High)


                        
                          CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C

SSVC

Exploitation: none Automatable: no Technical Impact: total

CISA Coordinator (v2.0.3)

CWE

CWE-122 - Heap-based Buffer Overflow

Assigner

microsoft

References

1 reference

URL	Tags
https://msrc.microsoft.com/update-guide/vulnerabi…	vendor-advisorypatch

Impacted products

11 products

Vendor	Product	Version
Microsoft	Microsoft 365 Apps for Enterprise	Affected: 16.0.1 , < https://aka.ms/OfficeSecurityReleases (custom)
Microsoft	Microsoft Office 2016	Affected: 16.0.0 , < 16.0.5556.1005 (custom)
Microsoft	Microsoft Office 2019	Affected: 19.0.0 , < https://aka.ms/OfficeSecurityReleases (custom)
Microsoft	Microsoft Office 365 for Mac	Affected: -
Microsoft	Microsoft Office LTSC 2021	Affected: 16.0.1 , < https://aka.ms/OfficeSecurityReleases (custom)
Microsoft	Microsoft Office LTSC 2024	Affected: 16.0.0 , < https://aka.ms/OfficeSecurityReleases (custom)
Microsoft	Microsoft Office LTSC for Mac 2021	Affected: -
Microsoft	Microsoft Office LTSC for Mac 2024	Affected: -
Microsoft	Microsoft SharePoint Enterprise Server 2016	Affected: 16.0.0 , < 16.0.5556.1005 (custom)
Microsoft	Microsoft SharePoint Server 2019	Affected: 16.0.0 , < 16.0.10417.20153 (custom)
Microsoft	Microsoft SharePoint Server Subscription Edition	Affected: 16.0.0 , < 16.0.19725.20384 (custom)

Date Public

2026-06-09 14:00

Show details on NVD website

JSON

To clipboard

{
  "containers": {
    "adp": [
      {
        "metrics": [
          {
            "other": {
              "content": {
                "id": "CVE-2026-44824",
                "options": [
                  {
                    "Exploitation": "none"
                  },
                  {
                    "Automatable": "no"
                  },
                  {
                    "Technical Impact": "total"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2026-06-10T03:57:19.447941Z",
                "version": "2.0.3"
              },
              "type": "ssvc"
            }
          }
        ],
        "providerMetadata": {
          "dateUpdated": "2026-06-10T10:30:09.454Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
        },
        "title": "CISA ADP Vulnrichment"
      }
    ],
    "cna": {
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          "platforms": [
            "32-bit Systems",
            "x64-based Systems"
          ],
          "product": "Microsoft 365 Apps for Enterprise",
          "vendor": "Microsoft",
          "versions": [
            {
              "lessThan": "https://aka.ms/OfficeSecurityReleases",
              "status": "affected",
              "version": "16.0.1",
              "versionType": "custom"
            }
          ]
        },
        {
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            "32-bit Systems",
            "x64-based Systems"
          ],
          "product": "Microsoft Office 2016",
          "vendor": "Microsoft",
          "versions": [
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              "version": "16.0.0",
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        {
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          "product": "Microsoft Office 2019",
          "vendor": "Microsoft",
          "versions": [
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              "status": "affected",
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          ]
        },
        {
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              "status": "affected",
              "version": "16.0.0",
              "versionType": "custom"
            }
          ]
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      ],
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                },
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          "value": "Heap-based buffer overflow in Microsoft Office allows an unauthorized attacker to execute code locally."
        }
      ],
      "metrics": [
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            "vectorString": "CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C",
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          "format": "CVSS",
          "scenarios": [
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            }
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              "description": "CWE-122: Heap-based Buffer Overflow",
              "lang": "en-US",
              "type": "CWE"
            }
          ]
        }
      ],
      "providerMetadata": {
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        "orgId": "f38d906d-7342-40ea-92c1-6c4a2c6478c8",
        "shortName": "microsoft"
      },
      "references": [
        {
          "name": "Microsoft Office Remote Code Execution Vulnerability",
          "tags": [
            "vendor-advisory",
            "patch"
          ],
          "url": "https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-44824"
        }
      ],
      "title": "Microsoft Office Remote Code Execution Vulnerability"
    }
  },
  "cveMetadata": {
    "assignerOrgId": "f38d906d-7342-40ea-92c1-6c4a2c6478c8",
    "assignerShortName": "microsoft",
    "cveId": "CVE-2026-44824",
    "datePublished": "2026-06-09T17:04:35.374Z",
    "dateReserved": "2026-05-07T20:07:18.272Z",
    "dateUpdated": "2026-06-17T16:26:31.706Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2"
}

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.

Detection rules are retrieved from Rulezet.

Action not permitted

FKIE_CVE-2026-44824

CVE-2026-44824 (GCVE-0-2026-44824)

Tags

Sightings

Nomenclature