NCSC-2026-0089

Vulnerability from csaf_ncscnl - Published: 2026-03-12 07:03 - Updated: 2026-03-12 07:03
Summary
Kwetsbaarheden verholpen in Adobe Acrobat Reader

Notes

The Netherlands Cyber Security Center (henceforth: NCSC-NL) maintains this page to enhance access to its information and security advisories. The use of this security advisory is subject to the following terms and conditions: NCSC-NL makes every reasonable effort to ensure that the content of this page is kept up to date, and that it is accurate and complete. Nevertheless, NCSC-NL cannot entirely rule out the possibility of errors, and therefore cannot give any warranty in respect of its completeness, accuracy or continuous keeping up-to-date. The information contained in this security advisory is intended solely for the purpose of providing general information to professional users. No rights can be derived from the information provided therein. NCSC-NL and the Kingdom of the Netherlands assume no legal liability or responsibility for any damage resulting from either the use or inability of use of this security advisory. This includes damage resulting from the inaccuracy of incompleteness of the information contained in the advisory. This security advisory is subject to Dutch law. All disputes related to or arising from the use of this advisory will be submitted to the competent court in The Hague. This choice of means also applies to the court in summary proceedings.
Feiten
Adobe heeft kwetsbaarheden verholpen in Adobe Acrobat Reader (versies tot 25.001.21265).
Interpretaties
De kwetsbaarheden omvatten een Use After Free-kwetsbaarheid die kan worden misbruikt om willekeurige code-executie te bereiken. Deze kwetsbaarheid wordt geactiveerd wanneer een gebruiker een kwaadwillig vervaardigd bestand opent. Daarnaast is er een kwetsbaarheid in de certificaatvalidatie, die een aanvaller in staat stelt om ingebouwde beveiligingsfuncties te omzeilen die zijn ontworpen om digitale handtekeningen te verifiëren. Dit kan leiden tot misleiding van gebruikers over de authenticiteit van documenten. De aanval vereist interactie van de gebruiker om succesvol te zijn.
Oplossingen
Adobe heeft updates uitgebracht om de kwetsbaarheden te verhelpen. Zie bijgevoegde referenties voor meer informatie.
Kans
medium
Schade
high
CWE-295
Improper Certificate Validation
CWE-347
Improper Verification of Cryptographic Signature
CWE-416
Use After Free
To clipboard 

{
  "document": {
    "category": "csaf_security_advisory",
    "csaf_version": "2.0",
    "distribution": {
      "tlp": {
        "label": "WHITE"
      }
    },
    "lang": "nl",
    "notes": [
      {
        "category": "legal_disclaimer",
        "text": "The Netherlands Cyber Security Center (henceforth: NCSC-NL) maintains this page to enhance access to its information and security advisories. The use of this security advisory is subject to the following terms and conditions:\n\n    NCSC-NL makes every reasonable effort to ensure that the content of this page is kept up to date, and that it is accurate and complete. Nevertheless, NCSC-NL cannot entirely rule out the possibility of errors, and therefore cannot give any warranty in respect of its completeness, accuracy or continuous keeping up-to-date. The information contained in this security advisory is intended solely for the purpose of providing general information to professional users. No rights can be derived from the information provided therein.\n\n    NCSC-NL and the Kingdom of the Netherlands assume no legal liability or responsibility for any damage resulting from either the use or inability of use of this security advisory. This includes damage resulting from the inaccuracy of incompleteness of the information contained in the advisory.\n    This security advisory is subject to Dutch law. All disputes related to or arising from the use of this advisory will be submitted to the competent court in The Hague. This choice of means also applies to the court in summary proceedings."
      },
      {
        "category": "description",
        "text": "Adobe heeft kwetsbaarheden verholpen in Adobe Acrobat Reader (versies tot 25.001.21265).",
        "title": "Feiten"
      },
      {
        "category": "description",
        "text": "De kwetsbaarheden omvatten een Use After Free-kwetsbaarheid die kan worden misbruikt om willekeurige code-executie te bereiken. Deze kwetsbaarheid wordt geactiveerd wanneer een gebruiker een kwaadwillig vervaardigd bestand opent. Daarnaast is er een kwetsbaarheid in de certificaatvalidatie, die een aanvaller in staat stelt om ingebouwde beveiligingsfuncties te omzeilen die zijn ontworpen om digitale handtekeningen te verifi\u00ebren. Dit kan leiden tot misleiding van gebruikers over de authenticiteit van documenten. De aanval vereist interactie van de gebruiker om succesvol te zijn.",
        "title": "Interpretaties"
      },
      {
        "category": "description",
        "text": "Adobe heeft updates uitgebracht om de kwetsbaarheden te verhelpen. Zie bijgevoegde referenties voor meer informatie.",
        "title": "Oplossingen"
      },
      {
        "category": "general",
        "text": "medium",
        "title": "Kans"
      },
      {
        "category": "general",
        "text": "high",
        "title": "Schade"
      },
      {
        "category": "general",
        "text": "Improper Certificate Validation",
        "title": "CWE-295"
      },
      {
        "category": "general",
        "text": "Improper Verification of Cryptographic Signature",
        "title": "CWE-347"
      },
      {
        "category": "general",
        "text": "Use After Free",
        "title": "CWE-416"
      }
    ],
    "publisher": {
      "category": "coordinator",
      "contact_details": "cert@ncsc.nl",
      "name": "Nationaal Cyber Security Centrum",
      "namespace": "https://www.ncsc.nl/"
    },
    "references": [
      {
        "category": "external",
        "summary": "Reference",
        "url": "https://helpx.adobe.com/security/products/acrobat/apsb26-26.html"
      }
    ],
    "title": "Kwetsbaarheden verholpen in Adobe Acrobat Reader",
    "tracking": {
      "current_release_date": "2026-03-12T07:03:24.148324Z",
      "generator": {
        "date": "2025-08-04T16:30:00Z",
        "engine": {
          "name": "V.A.",
          "version": "1.3"
        }
      },
      "id": "NCSC-2026-0089",
      "initial_release_date": "2026-03-12T07:03:24.148324Z",
      "revision_history": [
        {
          "date": "2026-03-12T07:03:24.148324Z",
          "number": "1.0.0",
          "summary": "Initiele versie"
        }
      ],
      "status": "final",
      "version": "1.0.0"
    }
  },
  "product_tree": {
    "branches": [
      {
        "branches": [
          {
            "branches": [
              {
                "category": "product_version_range",
                "name": "vers:unknown/*",
                "product": {
                  "name": "vers:unknown/*",
                  "product_id": "CSAFPID-1"
                }
              }
            ],
            "category": "product_name",
            "name": "Acrobat 2024"
          },
          {
            "branches": [
              {
                "category": "product_version_range",
                "name": "vers:unknown/*",
                "product": {
                  "name": "vers:unknown/*",
                  "product_id": "CSAFPID-2"
                }
              }
            ],
            "category": "product_name",
            "name": "Acrobat DC"
          },
          {
            "branches": [
              {
                "category": "product_version_range",
                "name": "vers:unknown/*",
                "product": {
                  "name": "vers:unknown/*",
                  "product_id": "CSAFPID-3"
                }
              }
            ],
            "category": "product_name",
            "name": "Acrobat Reader DC"
          }
        ],
        "category": "vendor",
        "name": "Adobe"
      }
    ]
  },
  "vulnerabilities": [
    {
      "cve": "CVE-2026-27220",
      "cwe": {
        "id": "CWE-416",
        "name": "Use After Free"
      },
      "notes": [
        {
          "category": "other",
          "text": "Use After Free",
          "title": "CWE-416"
        },
        {
          "category": "description",
          "text": "Acrobat Reader versions up to 25.001.21265 contain a Use After Free vulnerability that enables arbitrary code execution when a user opens a specially crafted malicious file.",
          "title": "Summary"
        }
      ],
      "product_status": {
        "known_affected": [
          "CSAFPID-1",
          "CSAFPID-2",
          "CSAFPID-3"
        ]
      },
      "references": [
        {
          "category": "self",
          "summary": "CVE-2026-27220 | NCSC-NL Website",
          "url": "https://vulnerabilities.ncsc.nl/csaf/v2/2026/cve-2026-27220.json"
        }
      ],
      "scores": [
        {
          "cvss_v3": {
            "baseScore": 7.8,
            "baseSeverity": "HIGH",
            "vectorString": "CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H",
            "version": "3.1"
          },
          "products": [
            "CSAFPID-1",
            "CSAFPID-2",
            "CSAFPID-3"
          ]
        }
      ],
      "title": "CVE-2026-27220"
    },
    {
      "cve": "CVE-2026-27221",
      "cwe": {
        "id": "CWE-347",
        "name": "Improper Verification of Cryptographic Signature"
      },
      "notes": [
        {
          "category": "other",
          "text": "Improper Verification of Cryptographic Signature",
          "title": "CWE-347"
        },
        {
          "category": "other",
          "text": "Improper Certificate Validation",
          "title": "CWE-295"
        },
        {
          "category": "description",
          "text": "Certain versions of Acrobat Reader contain an Improper Certificate Validation vulnerability that allows attackers to bypass security features and spoof a signer\u0027s identity, requiring user interaction to exploit.",
          "title": "Summary"
        }
      ],
      "product_status": {
        "known_affected": [
          "CSAFPID-1",
          "CSAFPID-2",
          "CSAFPID-3"
        ]
      },
      "references": [
        {
          "category": "self",
          "summary": "CVE-2026-27221 | NCSC-NL Website",
          "url": "https://vulnerabilities.ncsc.nl/csaf/v2/2026/cve-2026-27221.json"
        }
      ],
      "scores": [
        {
          "cvss_v3": {
            "baseScore": 5.5,
            "baseSeverity": "MEDIUM",
            "vectorString": "CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:N",
            "version": "3.1"
          },
          "products": [
            "CSAFPID-1",
            "CSAFPID-2",
            "CSAFPID-3"
          ]
        }
      ],
      "title": "CVE-2026-27221"
    },
    {
      "cve": "CVE-2026-27278",
      "cwe": {
        "id": "CWE-416",
        "name": "Use After Free"
      },
      "notes": [
        {
          "category": "other",
          "text": "Use After Free",
          "title": "CWE-416"
        },
        {
          "category": "description",
          "text": "Acrobat Reader versions up to 25.001.21265 contain a Use After Free vulnerability that enables arbitrary code execution when a user opens a specially crafted malicious file.",
          "title": "Summary"
        }
      ],
      "product_status": {
        "known_affected": [
          "CSAFPID-1",
          "CSAFPID-2",
          "CSAFPID-3"
        ]
      },
      "references": [
        {
          "category": "self",
          "summary": "CVE-2026-27278 | NCSC-NL Website",
          "url": "https://vulnerabilities.ncsc.nl/csaf/v2/2026/cve-2026-27278.json"
        }
      ],
      "scores": [
        {
          "cvss_v3": {
            "baseScore": 7.8,
            "baseSeverity": "HIGH",
            "vectorString": "CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H",
            "version": "3.1"
          },
          "products": [
            "CSAFPID-1",
            "CSAFPID-2",
            "CSAFPID-3"
          ]
        }
      ],
      "title": "CVE-2026-27278"
    }
  ]
}


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  • 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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Detection rules are retrieved from Rulezet.