NCSC-2026-0150

Vulnerability from csaf_ncscnl - Published: 2026-05-13 09:18 - Updated: 2026-05-13 09:18
Summary
Kwetsbaarheden verholpen in Adobe Illustrator
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 meerdere kwetsbaarheden verholpen in Adobe Illustrator (versies 29.8.6, 30.3 en eerder).
Interpretaties: De kwetsbaarheden bevinden zich in de wijze waarop Adobe Illustrator speciaal vervaardigde bestanden verwerkt. Er is sprake van een out-of-bounds write, een NULL pointer dereference, een out-of-bounds read en een heap-based buffer overflow. Door deze fouten in de bounds checking tijdens het parsen van bestanden kan een aanvaller het programma laten crashen (denial-of-service), gevoelige geheugeninhoud uitlezen, of code uitvoeren binnen de context van de applicatie. De kwetsbaarheden zijn aanwezig in meerdere versies van Adobe Illustrator en worden misbruikt door het openen van kwaadaardig opgemaakte bestanden.
Oplossingen: Adobe heeft updates uitgebracht om de kwetsbaarheden in Adobe Illustrator te verhelpen. Zie bijgevoegde referenties voor meer informatie.
Kans: medium
Schade: high
CWE-122: Heap-based Buffer Overflow
CWE-125: Out-of-bounds Read
CWE-476: NULL Pointer Dereference
CWE-787: Out-of-bounds Write

Adobe Illustrator versions 29.8.6, 30.3, and earlier contain an out-of-bounds write vulnerability that may enable arbitrary code execution when a user opens a specially crafted malicious file.

CWE-787 - Out-of-bounds Write
Affected products
Product Identifier Version Remediation
vers:unknown/*
Adobe / Illustrator 2025
vers:unknown/*
vers:unknown/*
Adobe / Illustrator 2026
vers:unknown/*

Adobe Illustrator versions 29.8.6, 30.3, and earlier contain a NULL Pointer Dereference vulnerability exploitable via malicious files, causing application crashes and denial-of-service conditions.

CWE-476 - NULL Pointer Dereference
Affected products
Product Identifier Version Remediation
vers:unknown/*
Adobe / Illustrator 2025
vers:unknown/*
vers:unknown/*
Adobe / Illustrator 2026
vers:unknown/*

Adobe Illustrator versions 29.8.6, 30.3, and earlier contain an out-of-bounds read vulnerability that may expose sensitive memory when opening a malicious file.

CWE-125 - Out-of-bounds Read
Affected products
Product Identifier Version Remediation
vers:unknown/*
Adobe / Illustrator 2025
vers:unknown/*
vers:unknown/*
Adobe / Illustrator 2026
vers:unknown/*

Adobe Illustrator versions 29.8.6, 30.3, and earlier contain a heap-based buffer overflow vulnerability that enables arbitrary code execution when a user opens a specially crafted malicious file.

CWE-122 - Heap-based Buffer Overflow
Affected products
Product Identifier Version Remediation
vers:unknown/*
Adobe / Illustrator 2025
vers:unknown/*
vers:unknown/*
Adobe / Illustrator 2026
vers:unknown/*

{
  "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 meerdere kwetsbaarheden verholpen in Adobe Illustrator (versies 29.8.6, 30.3 en eerder).",
        "title": "Feiten"
      },
      {
        "category": "description",
        "text": "De kwetsbaarheden bevinden zich in de wijze waarop Adobe Illustrator speciaal vervaardigde bestanden verwerkt. Er is sprake van een out-of-bounds write, een NULL pointer dereference, een out-of-bounds read en een heap-based buffer overflow. Door deze fouten in de bounds checking tijdens het parsen van bestanden kan een aanvaller het programma laten crashen (denial-of-service), gevoelige geheugeninhoud uitlezen, of code uitvoeren binnen de context van de applicatie. De kwetsbaarheden zijn aanwezig in meerdere versies van Adobe Illustrator en worden misbruikt door het openen van kwaadaardig opgemaakte bestanden.",
        "title": "Interpretaties"
      },
      {
        "category": "description",
        "text": "Adobe heeft updates uitgebracht om de kwetsbaarheden in Adobe Illustrator 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": "Heap-based Buffer Overflow",
        "title": "CWE-122"
      },
      {
        "category": "general",
        "text": "Out-of-bounds Read",
        "title": "CWE-125"
      },
      {
        "category": "general",
        "text": "NULL Pointer Dereference",
        "title": "CWE-476"
      },
      {
        "category": "general",
        "text": "Out-of-bounds Write",
        "title": "CWE-787"
      }
    ],
    "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/illustrator/apsb26-51.html"
      }
    ],
    "title": "Kwetsbaarheden verholpen in Adobe Illustrator",
    "tracking": {
      "current_release_date": "2026-05-13T09:18:58.546192Z",
      "generator": {
        "date": "2025-08-04T16:30:00Z",
        "engine": {
          "name": "V.A.",
          "version": "1.3"
        }
      },
      "id": "NCSC-2026-0150",
      "initial_release_date": "2026-05-13T09:18:58.546192Z",
      "revision_history": [
        {
          "date": "2026-05-13T09:18:58.546192Z",
          "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": "Illustrator 2025"
          },
          {
            "branches": [
              {
                "category": "product_version_range",
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                "product": {
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                }
              }
            ],
            "category": "product_name",
            "name": "Illustrator 2026"
          }
        ],
        "category": "vendor",
        "name": "Adobe"
      }
    ]
  },
  "vulnerabilities": [
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      "cve": "CVE-2026-34661",
      "cwe": {
        "id": "CWE-787",
        "name": "Out-of-bounds Write"
      },
      "notes": [
        {
          "category": "other",
          "text": "Out-of-bounds Write",
          "title": "CWE-787"
        },
        {
          "category": "description",
          "text": "Adobe Illustrator versions 29.8.6, 30.3, and earlier contain an out-of-bounds write vulnerability that may enable arbitrary code execution when a user opens a specially crafted malicious file.",
          "title": "Summary"
        }
      ],
      "product_status": {
        "known_affected": [
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          "CSAFPID-2"
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      },
      "references": [
        {
          "category": "self",
          "summary": "CVE-2026-34661 | NCSC-NL Website",
          "url": "https://vulnerabilities.ncsc.nl/csaf/v2/2026/cve-2026-34661.json"
        }
      ],
      "scores": [
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            "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"
          },
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            "CSAFPID-2"
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    },
    {
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        "name": "NULL Pointer Dereference"
      },
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          "category": "other",
          "text": "NULL Pointer Dereference",
          "title": "CWE-476"
        },
        {
          "category": "description",
          "text": "Adobe Illustrator versions 29.8.6, 30.3, and earlier contain a NULL Pointer Dereference vulnerability exploitable via malicious files, causing application crashes and denial-of-service conditions.",
          "title": "Summary"
        }
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          "text": "Out-of-bounds Read",
          "title": "CWE-125"
        },
        {
          "category": "description",
          "text": "Adobe Illustrator versions 29.8.6, 30.3, and earlier contain an out-of-bounds read vulnerability that may expose sensitive memory when opening a malicious file.",
          "title": "Summary"
        }
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          "url": "https://vulnerabilities.ncsc.nl/csaf/v2/2026/cve-2026-34663.json"
        }
      ],
      "scores": [
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            "vectorString": "CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N",
            "version": "3.1"
          },
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            "CSAFPID-2"
          ]
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        "name": "Heap-based Buffer Overflow"
      },
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          "category": "other",
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          "title": "CWE-122"
        },
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          "category": "description",
          "text": "Adobe Illustrator versions 29.8.6, 30.3, and earlier contain a heap-based buffer overflow vulnerability that enables arbitrary code execution when a user opens a specially crafted malicious file.",
          "title": "Summary"
        }
      ],
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          "CSAFPID-2"
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          "url": "https://vulnerabilities.ncsc.nl/csaf/v2/2026/cve-2026-34687.json"
        }
      ],
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            "version": "3.1"
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            "CSAFPID-2"
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        }
      ],
      "title": "CVE-2026-34687"
    }
  ]
}


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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.

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Detection rules are retrieved from Rulezet.

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