CVE-2025-55780 in MuPDF
Tóm tắt
Bởi MITRE • 23/09/2025
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.
If you want to get best quality of vulnerability data, you may have to visit VulDB.