CERTFR-2026-AVI-0623

Vulnerability from certfr_avis - Published: 2026-05-20 - Updated: 2026-05-21

De multiples vulnérabilités ont été découvertes dans les produits Microsoft. Certaines d'entre elles permettent à un attaquant de provoquer une exécution de code arbitraire à distance, une élévation de privilèges et un déni de service.

Microsoft indique que les vulnérabilités CVE-2026-41091 et CVE-2026-45498 sont activement exploitées.

Solutions

Se référer au bulletin de sécurité de l'éditeur pour l'obtention des correctifs (cf. section Documentation).

Impacted products
Vendor Product Description
Microsoft N/A azl3 kernel-hwe 6.12.0.0-1 versions antérieures à 6.12.89.1-1
Microsoft N/A azl3 python-urllib3 2.0.7-4 versions antérieures à 2.0.7-5
Microsoft N/A Microsoft Malware Protection Engine
Microsoft N/A azl3 vim 9.2.0392-1 versions antérieures à 9.2.0488-1
Microsoft N/A azl3 kernel 6.6.138.1-1
Microsoft N/A azl3 openvswitch 3.3.0-2 versions antérieures à 3.3.0-3
Microsoft N/A Microsoft Defender Antimalware Platform
References

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{
  "$ref": "https://www.cert.ssi.gouv.fr/openapi.json",
  "affected_systems": [
    {
      "description": "azl3 kernel-hwe 6.12.0.0-1 versions ant\u00e9rieures \u00e0 6.12.89.1-1",
      "product": {
        "name": "N/A",
        "vendor": {
          "name": "Microsoft",
          "scada": false
        }
      }
    },
    {
      "description": "azl3 python-urllib3 2.0.7-4 versions ant\u00e9rieures \u00e0 2.0.7-5",
      "product": {
        "name": "N/A",
        "vendor": {
          "name": "Microsoft",
          "scada": false
        }
      }
    },
    {
      "description": "Microsoft Malware Protection Engine",
      "product": {
        "name": "N/A",
        "vendor": {
          "name": "Microsoft",
          "scada": false
        }
      }
    },
    {
      "description": "azl3 vim 9.2.0392-1 versions ant\u00e9rieures \u00e0 9.2.0488-1",
      "product": {
        "name": "N/A",
        "vendor": {
          "name": "Microsoft",
          "scada": false
        }
      }
    },
    {
      "description": "azl3 kernel 6.6.138.1-1",
      "product": {
        "name": "N/A",
        "vendor": {
          "name": "Microsoft",
          "scada": false
        }
      }
    },
    {
      "description": "azl3 openvswitch 3.3.0-2 versions ant\u00e9rieures \u00e0 3.3.0-3",
      "product": {
        "name": "N/A",
        "vendor": {
          "name": "Microsoft",
          "scada": false
        }
      }
    },
    {
      "description": "Microsoft Defender Antimalware Platform",
      "product": {
        "name": "N/A",
        "vendor": {
          "name": "Microsoft",
          "scada": false
        }
      }
    }
  ],
  "affected_systems_content": "",
  "content": "## Solutions\n\nSe r\u00e9f\u00e9rer au bulletin de s\u00e9curit\u00e9 de l\u0027\u00e9diteur pour l\u0027obtention des correctifs (cf. section Documentation).",
  "cves": [
    {
      "name": "CVE-2026-34956",
      "url": "https://www.cve.org/CVERecord?id=CVE-2026-34956"
    },
    {
      "name": "CVE-2026-45584",
      "url": "https://www.cve.org/CVERecord?id=CVE-2026-45584"
    },
    {
      "name": "CVE-2026-41091",
      "url": "https://www.cve.org/CVERecord?id=CVE-2026-41091"
    },
    {
      "name": "CVE-2026-46483",
      "url": "https://www.cve.org/CVERecord?id=CVE-2026-46483"
    },
    {
      "name": "CVE-2026-46333",
      "url": "https://www.cve.org/CVERecord?id=CVE-2026-46333"
    },
    {
      "name": "CVE-2026-44431",
      "url": "https://www.cve.org/CVERecord?id=CVE-2026-44431"
    },
    {
      "name": "CVE-2026-45498",
      "url": "https://www.cve.org/CVERecord?id=CVE-2026-45498"
    }
  ],
  "initial_release_date": "2026-05-20T00:00:00",
  "last_revision_date": "2026-05-21T00:00:00",
  "links": [],
  "reference": "CERTFR-2026-AVI-0623",
  "revisions": [
    {
      "description": "Version initiale",
      "revision_date": "2026-05-20T00:00:00.000000"
    },
    {
      "description": "Ajout du bulletin de s\u00e9curit\u00e9 CVE-2026-46333.",
      "revision_date": "2026-05-21T00:00:00.000000"
    }
  ],
  "risks": [
    {
      "description": "Ex\u00e9cution de code arbitraire \u00e0 distance"
    },
    {
      "description": "Non sp\u00e9cifi\u00e9 par l\u0027\u00e9diteur"
    },
    {
      "description": "D\u00e9ni de service"
    },
    {
      "description": "\u00c9l\u00e9vation de privil\u00e8ges"
    }
  ],
  "summary": "De multiples vuln\u00e9rabilit\u00e9s ont \u00e9t\u00e9 d\u00e9couvertes dans les produits Microsoft. Certaines d\u0027entre elles permettent \u00e0 un attaquant de provoquer une ex\u00e9cution de code arbitraire \u00e0 distance, une \u00e9l\u00e9vation de privil\u00e8ges et un d\u00e9ni de service.\n\nMicrosoft indique que les vuln\u00e9rabilit\u00e9s CVE-2026-41091 et CVE-2026-45498 sont activement exploit\u00e9es.",
  "title": "Multiples vuln\u00e9rabilit\u00e9s dans les produits Microsoft",
  "vendor_advisories": [
    {
      "published_at": "2026-05-16",
      "title": "Bulletin de s\u00e9curit\u00e9 Microsoft CVE-2026-46333",
      "url": "https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-46333"
    },
    {
      "published_at": "2026-05-19",
      "title": "Bulletin de s\u00e9curit\u00e9 Microsoft CVE-2026-45498",
      "url": "https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-45498"
    },
    {
      "published_at": "2026-05-15",
      "title": "Bulletin de s\u00e9curit\u00e9 Microsoft CVE-2026-34956",
      "url": "https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-34956"
    },
    {
      "published_at": "2026-05-16",
      "title": "Bulletin de s\u00e9curit\u00e9 Microsoft CVE-2026-44431",
      "url": "https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-44431"
    },
    {
      "published_at": "2026-05-19",
      "title": "Bulletin de s\u00e9curit\u00e9 Microsoft CVE-2026-45584",
      "url": "https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-45584"
    },
    {
      "published_at": "2026-05-17",
      "title": "Bulletin de s\u00e9curit\u00e9 Microsoft CVE-2026-46483",
      "url": "https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-46483"
    },
    {
      "published_at": "2026-05-19",
      "title": "Bulletin de s\u00e9curit\u00e9 Microsoft CVE-2026-41091",
      "url": "https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-41091"
    }
  ]
}


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Sightings

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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.
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  • 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.



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