CVE-2025-55780_CVE-2025-55780

7.5 / 10

HIGH

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Description

A null pointer dereference occurs in the function break_word_for_overflow_wrap() in MuPDF 1.26.4 when rendering a malformed EPUB document. Specifically, the function calls fz_html_split_flow() to split a FLOW_WORD node, but does not check if node->next is valid before accessing node->next->overflow_wrap, resulting in a crash if the split fails or returns a partial node chain.

Basic Information

ID CVE-2025-55780

Source mitre

Published Sep 23, 2025 at 00:00

Modified Sep 24, 2025 at 18:37

Affected Product

Vendor n/a

Product n/a

Version n/a

Affected Versions n/a n/a n/a

CWE Classification

CWE-476

References

bugs.ghostscript.com /show_bug.cgi

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    "published": "2025-09-23T00:00:00.000Z",
    "modified": "2025-09-24T18:37:31.185Z",
    "type": "cve",
    "title": "CVE-2025-55780",
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