WID-SEC-W-2026-2322

Vulnerability from csaf_certbund - Published: 2026-07-14 22:00 - Updated: 2026-07-14 22:00
Summary
Microsoft Malware Protection Engine und Defender: Mehrere Schwachstellen
Severity
Mittel
Notes
Das BSI ist als Anbieter für die eigenen, zur Nutzung bereitgestellten Inhalte nach den allgemeinen Gesetzen verantwortlich. Nutzerinnen und Nutzer sind jedoch dafür verantwortlich, die Verwendung und/oder die Umsetzung der mit den Inhalten bereitgestellten Informationen sorgfältig im Einzelfall zu prüfen.
Produktbeschreibung: Die Malware Protection Engine ist Bestandteil verschiedener Sicherheitsprodukte von Microsoft und stellt selbigen das Scannen sowie Erkennen und Entfernen von Schadprogrammen zur Verfügung. Microsoft Defender ist eine Software zur Erkennung von schädlicher Software (Malware).
Angriff: Ein Angreifer kann mehrere Schwachstellen in Microsoft Malware Protection Engine und Microsoft Defender ausnutzen, um beliebigen Programmcode auszuführen, erweiterte Berechtigungen zu erlangen oder vertrauliche Informationen offenzulegen.
Betroffene Betriebssysteme: - Windows
CVE-2026-50657
Affected products
Product Identifier Version Remediation
Microsoft Defender for Endpoint for Mac
Microsoft / Defender
 cpe:/a:microsoft:defender:for_endpoint_for_mac for Endpoint for Mac
Microsoft Malware Protection Engine
Microsoft
 cpe:/a:microsoft:malware_protection_engine:- —
CVE-2026-50658
Affected products
Known affected 2 products, the same list as for CVE-2026-50657
CVE-2026-55011
Affected products
Known affected 2 products, the same list as for CVE-2026-50657
CVE-2026-55012
Affected products
Known affected 2 products, the same list as for CVE-2026-50657
CVE-2026-56178
Affected products
Known affected 2 products, the same list as for CVE-2026-50657
References
To clipboard 

{
  "document": {
    "aggregate_severity": {
      "text": "mittel"
    },
    "category": "csaf_base",
    "csaf_version": "2.0",
    "distribution": {
      "tlp": {
        "label": "WHITE",
        "url": "https://www.first.org/tlp/"
      }
    },
    "lang": "de-DE",
    "notes": [
      {
        "category": "legal_disclaimer",
        "text": "Das BSI ist als Anbieter f\u00fcr die eigenen, zur Nutzung bereitgestellten Inhalte nach den allgemeinen Gesetzen verantwortlich. Nutzerinnen und Nutzer sind jedoch daf\u00fcr verantwortlich, die Verwendung und/oder die Umsetzung der mit den Inhalten bereitgestellten Informationen sorgf\u00e4ltig im Einzelfall zu pr\u00fcfen."
      },
      {
        "category": "description",
        "text": "Die Malware Protection Engine ist Bestandteil verschiedener Sicherheitsprodukte von Microsoft und stellt selbigen das Scannen sowie Erkennen und Entfernen von Schadprogrammen zur Verf\u00fcgung.\r\nMicrosoft Defender ist eine Software zur Erkennung von sch\u00e4dlicher Software (Malware).",
        "title": "Produktbeschreibung"
      },
      {
        "category": "summary",
        "text": "Ein Angreifer kann mehrere Schwachstellen in Microsoft Malware Protection Engine und Microsoft Defender ausnutzen, um beliebigen Programmcode auszuf\u00fchren, erweiterte Berechtigungen zu erlangen oder vertrauliche Informationen offenzulegen.",
        "title": "Angriff"
      },
      {
        "category": "general",
        "text": "- Windows",
        "title": "Betroffene Betriebssysteme"
      }
    ],
    "publisher": {
      "category": "other",
      "contact_details": "csaf-provider@cert-bund.de",
      "name": "Bundesamt f\u00fcr Sicherheit in der Informationstechnik",
      "namespace": "https://www.bsi.bund.de"
    },
    "references": [
      {
        "category": "self",
        "summary": "WID-SEC-W-2026-2322 - CSAF Version",
        "url": "https://wid.cert-bund.de/.well-known/csaf/white/2026/wid-sec-w-2026-2322.json"
      },
      {
        "category": "self",
        "summary": "WID-SEC-2026-2322 - Portal Version",
        "url": "https://wid.cert-bund.de/portal/wid/securityadvisory?name=WID-SEC-2026-2322"
      },
      {
        "category": "external",
        "summary": "Microsoft Leitfaden f\u00fcr Sicherheitsupdates",
        "url": "https://msrc.microsoft.com/update-guide/"
      },
      {
        "category": "external",
        "summary": "Microsoft Security Advisory CVE-2026-55011",
        "url": "https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-55011"
      },
      {
        "category": "external",
        "summary": "Microsoft Security Advisory CVE-2026-55012",
        "url": "https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-55012"
      },
      {
        "category": "external",
        "summary": "Microsoft Security Advisory CVE-2026-50658",
        "url": "https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-50658"
      },
      {
        "category": "external",
        "summary": "Microsoft Security Advisory CVE-2026-56178",
        "url": "https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-56178"
      },
      {
        "category": "external",
        "summary": "Microsoft Security Advisory CVE-2026-50657",
        "url": "https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-50657"
      }
    ],
    "source_lang": "en-US",
    "title": "Microsoft Malware Protection Engine und Defender: Mehrere Schwachstellen",
    "tracking": {
      "current_release_date": "2026-07-14T22:00:00.000+00:00",
      "generator": {
        "date": "2026-07-16T17:41:52.833+00:00",
        "engine": {
          "name": "BSI-WID",
          "version": "1.6.0"
        }
      },
      "id": "WID-SEC-W-2026-2322",
      "initial_release_date": "2026-07-14T22:00:00.000+00:00",
      "revision_history": [
        {
          "date": "2026-07-14T22:00:00.000+00:00",
          "number": "1",
          "summary": "Initiale Fassung"
        }
      ],
      "status": "final",
      "version": "1"
    }
  },
  "product_tree": {
    "branches": [
      {
        "branches": [
          {
            "branches": [
              {
                "category": "product_version",
                "name": "for Endpoint for Mac",
                "product": {
                  "name": "Microsoft Defender for Endpoint for Mac",
                  "product_id": "T055143",
                  "product_identification_helper": {
                    "cpe": "cpe:/a:microsoft:defender:for_endpoint_for_mac"
                  }
                }
              }
            ],
            "category": "product_name",
            "name": "Defender"
          },
          {
            "category": "product_name",
            "name": "Microsoft Malware Protection Engine",
            "product": {
              "name": "Microsoft Malware Protection Engine",
              "product_id": "T056597",
              "product_identification_helper": {
                "cpe": "cpe:/a:microsoft:malware_protection_engine:-"
              }
            }
          }
        ],
        "category": "vendor",
        "name": "Microsoft"
      }
    ]
  },
  "vulnerabilities": [
    {
      "cve": "CVE-2026-50657",
      "product_status": {
        "known_affected": [
          "T055143",
          "T056597"
        ]
      },
      "release_date": "2026-07-14T22:00:00.000+00:00",
      "title": "CVE-2026-50657"
    },
    {
      "cve": "CVE-2026-50658",
      "product_status": {
        "known_affected": [
          "T055143",
          "T056597"
        ]
      },
      "release_date": "2026-07-14T22:00:00.000+00:00",
      "title": "CVE-2026-50658"
    },
    {
      "cve": "CVE-2026-55011",
      "product_status": {
        "known_affected": [
          "T055143",
          "T056597"
        ]
      },
      "release_date": "2026-07-14T22:00:00.000+00:00",
      "title": "CVE-2026-55011"
    },
    {
      "cve": "CVE-2026-55012",
      "product_status": {
        "known_affected": [
          "T055143",
          "T056597"
        ]
      },
      "release_date": "2026-07-14T22:00:00.000+00:00",
      "title": "CVE-2026-55012"
    },
    {
      "cve": "CVE-2026-56178",
      "product_status": {
        "known_affected": [
          "T055143",
          "T056597"
        ]
      },
      "release_date": "2026-07-14T22:00:00.000+00:00",
      "title": "CVE-2026-56178"
    }
  ]
}



Log in or create an account to share your comment.




Tags
Taxonomy of the tags.





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.



Related by attack behaviour

Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.