WID-SEC-W-2026-1047

Vulnerability from csaf_certbund - Published: 2026-04-09 22:00 - Updated: 2026-04-12 22:00
Summary
Adobe Acrobat Reader: Schwachstelle ermöglicht Offenlegung von Informationen und Codeausführung
Severity
Kritisch
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: Adobe Reader ist ein Programm für die Anzeige von Dokumenten im Portable Document Format (PDF).
Angriff: Ein entfernter, anonymer Angreifer kann eine Schwachstelle in Adobe Acrobat Reader ausnutzen, um vertrauliche Informationen offenzulegen und beliebigen Code auszuführen, was zu einer vollständigen Kompromittierung des Systems führen könnte.
Betroffene Betriebssysteme: - Sonstiges - UNIX - Windows
CVE-2026-34621
References
To clipboard 

{
  "document": {
    "aggregate_severity": {
      "text": "kritisch"
    },
    "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": "Adobe Reader ist ein Programm f\u00fcr die Anzeige von Dokumenten im Portable Document Format (PDF).",
        "title": "Produktbeschreibung"
      },
      {
        "category": "summary",
        "text": "Ein entfernter, anonymer Angreifer kann eine Schwachstelle in Adobe Acrobat Reader ausnutzen, um vertrauliche Informationen offenzulegen und beliebigen Code auszuf\u00fchren, was zu einer vollst\u00e4ndigen Kompromittierung des Systems f\u00fchren k\u00f6nnte.",
        "title": "Angriff"
      },
      {
        "category": "general",
        "text": "- Sonstiges\n- UNIX\n- 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-2026-1047 - CSAF Version",
        "url": "https://wid.cert-bund.de/.well-known/csaf/white/2026/wid-sec-w-2026-1047.json"
      },
      {
        "category": "self",
        "summary": "WID-SEC-2026-1047 - Portal Version",
        "url": "https://wid.cert-bund.de/portal/wid/securityadvisory?name=WID-SEC-2026-1047"
      },
      {
        "category": "external",
        "summary": "Blog Post vom 2026-04-09",
        "url": "https://justhaifei1.blogspot.com/2026/04/expmon-detected-sophisticated-zero-day-adobe-reader.html"
      },
      {
        "category": "external",
        "summary": "Expmon Analysis vom 2026-04-09",
        "url": "https://pub.expmon.com/analysis/328131/"
      },
      {
        "category": "external",
        "summary": "VirusTotal Detection vom 2026-04-09",
        "url": "https://www.virustotal.com/gui/file/54077a5b15638e354fa02318623775b7a1cc0e8c21e59bcbab333035369e377f/detection"
      },
      {
        "category": "external",
        "summary": "Sophos Blog vom 2026-04-09",
        "url": "https://www.sophos.com/en-us/blog/adobe-reader-zero-day-vulnerability-in-active-exploitation"
      },
      {
        "category": "external",
        "summary": "Adobe Security Bulletin vom 2026-04-12",
        "url": "https://helpx.adobe.com/security/products/acrobat/apsb26-43.html"
      }
    ],
    "source_lang": "en-US",
    "title": "Adobe Acrobat Reader: Schwachstelle erm\u00f6glicht Offenlegung von Informationen und Codeausf\u00fchrung",
    "tracking": {
      "current_release_date": "2026-04-12T22:00:00.000+00:00",
      "generator": {
        "date": "2026-04-13T06:04:14.326+00:00",
        "engine": {
          "name": "BSI-WID",
          "version": "1.5.0"
        }
      },
      "id": "WID-SEC-W-2026-1047",
      "initial_release_date": "2026-04-09T22:00:00.000+00:00",
      "revision_history": [
        {
          "date": "2026-04-09T22:00:00.000+00:00",
          "number": "1",
          "summary": "Initiale Fassung"
        },
        {
          "date": "2026-04-12T22:00:00.000+00:00",
          "number": "2",
          "summary": "Patch eingetragen"
        }
      ],
      "status": "final",
      "version": "2"
    }
  },
  "product_tree": {
    "branches": [
      {
        "branches": [
          {
            "branches": [
              {
                "category": "product_version_range",
                "name": "Windows \u003c24.001.30362",
                "product": {
                  "name": "Adobe Acrobat Windows \u003c24.001.30362",
                  "product_id": "T052665"
                }
              },
              {
                "category": "product_version",
                "name": "Windows 24.001.30362",
                "product": {
                  "name": "Adobe Acrobat Windows 24.001.30362",
                  "product_id": "T052665-fixed",
                  "product_identification_helper": {
                    "cpe": "cpe:/a:adobe:acrobat:windows__24.001.30362"
                  }
                }
              },
              {
                "category": "product_version_range",
                "name": "Mac \u003c24.001.30360",
                "product": {
                  "name": "Adobe Acrobat Mac \u003c24.001.30360",
                  "product_id": "T052666"
                }
              },
              {
                "category": "product_version",
                "name": "Mac 24.001.30360",
                "product": {
                  "name": "Adobe Acrobat Mac 24.001.30360",
                  "product_id": "T052666-fixed",
                  "product_identification_helper": {
                    "cpe": "cpe:/a:adobe:acrobat:mac__24.001.30360"
                  }
                }
              }
            ],
            "category": "product_name",
            "name": "Acrobat"
          },
          {
            "branches": [
              {
                "category": "product_version_range",
                "name": "\u003c26.001.21411",
                "product": {
                  "name": "Adobe Acrobat DC \u003c26.001.21411",
                  "product_id": "T052663"
                }
              },
              {
                "category": "product_version",
                "name": "26.001.21411",
                "product": {
                  "name": "Adobe Acrobat DC 26.001.21411",
                  "product_id": "T052663-fixed",
                  "product_identification_helper": {
                    "cpe": "cpe:/a:adobe:acrobat_dc:26.001.21411"
                  }
                }
              }
            ],
            "category": "product_name",
            "name": "Acrobat DC"
          },
          {
            "branches": [
              {
                "category": "product_version_range",
                "name": "\u003c=26.001.21367",
                "product": {
                  "name": "Adobe Acrobat Reader \u003c=26.001.21367",
                  "product_id": "T052646"
                }
              },
              {
                "category": "product_version_range",
                "name": "\u003c=26.001.21367",
                "product": {
                  "name": "Adobe Acrobat Reader \u003c=26.001.21367",
                  "product_id": "T052646-fixed"
                }
              }
            ],
            "category": "product_name",
            "name": "Acrobat Reader"
          },
          {
            "branches": [
              {
                "category": "product_version_range",
                "name": "\u003c26.001.21411",
                "product": {
                  "name": "Adobe Acrobat Reader DC \u003c26.001.21411",
                  "product_id": "T052664"
                }
              },
              {
                "category": "product_version",
                "name": "26.001.21411",
                "product": {
                  "name": "Adobe Acrobat Reader DC 26.001.21411",
                  "product_id": "T052664-fixed",
                  "product_identification_helper": {
                    "cpe": "cpe:/a:adobe:acrobat_reader_dc:26.001.21411"
                  }
                }
              }
            ],
            "category": "product_name",
            "name": "Acrobat Reader DC"
          }
        ],
        "category": "vendor",
        "name": "Adobe"
      }
    ]
  },
  "vulnerabilities": [
    {
      "cve": "CVE-2026-34621",
      "product_status": {
        "known_affected": [
          "T052665",
          "T052666",
          "T052663",
          "T052664"
        ],
        "last_affected": [
          "T052646"
        ]
      },
      "release_date": "2026-04-09T22:00:00.000+00:00",
      "title": "CVE-2026-34621"
    }
  ]
}


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