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    CVE-2021-33793

    Foxit Reader before 10.1.4 and PhantomPDF before 10.1.4 have an out-of-bounds write because the Cross-Reference table is mishandled during Office document conversion.

    Published:Aug 11, 2021
    Last Modified:Nov 21, 2024
    EPS:Aug 11, 2021
    EPSS Score:0.00027
    CVSS Score:9.8

    Affected Products

    Vendor
    Foxitsoftware
    Product
    Foxit Reader
    Vendor
    Foxitsoftware
    Product
    Phantompdf

    Exploits

    No exploit reference

    Common Weakness Enumeration

    CWE-787 Out-of-bounds Write

    Common Attack Pattern Enumeration and Classification (CAPEC)

    No CAPEC recorded yet

    Related CVEs

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    CVE-2026-13127 (CVSS 7.8) — The application opens the PDF file. JavaScript then rewrites the document to modify the page structure, result…
    CVE-2026-13128 (CVSS 7.8) — Embedding JavaScript within a PDF file will cause the page to be deleted. Subsequent scripts will continue to …
    CVE-2026-57239 (CVSS 8.2) — The user-controllable executable files will be directly executed by high-privilege processes, allowing low-pri…
    CVE-2026-57240 (CVSS 7.8) — When the application opens a PDF file and JavaScript deletes the PDF fields, the subsequent logic still uses t…
    CVE-2026-13129 (CVSS 7.8) — When the application opens a PDF file, JavaScript uses the damaged field tree to trigger field traversal, resu…
    CVE-2026-57238 (CVSS 7.8) — After the application opened the PDF, JavaScript deleted the form field object. Subsequently, it attempted to …
    CVE-2026-57241 (CVSS 6.1) — The application opens the PDF, and JavaScript performs operations on the page and the document, causing the pa…
    CVE-2026-57242 (CVSS 7.8) — The application opens the PDF, and JavaScript modifies the form. However, the related objects on the page lack…

    Common Vulnerability Scoring System

    Attack Vector
    Network
    Adjacent
    Local
    Physical
    Privileges Required
    None
    Low
    High
    User Interaction
    None
    Required
    Scope
    Unchanged
    Changed
    Confidentiality
    None
    Low
    High
    Integrity
    None
    Low
    High
    Availability
    None
    Low
    High