CVE-2026-120752
PyMuPDF 1.25.3 before 2.0 contains a stack-based buffer overflow vulnerability in JM_set_annot_callout_line() that copies a caller-supplied
CVSS
7.5
Alto
EPSS
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KEV
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Exploit Today
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0-100
Publicado: 2 nov 2026 · Última mod.: 2 nov 2026 · CWE-121
Sin historial EPSS suficiente todavía.
PyMuPDF 1.25.3 before 2.0 contains a stack-based buffer overflow vulnerability in JM_set_annot_callout_line() that copies a caller-supplied number of callout points into a fixed three-element stack array. Attackers who control the callout argument passed to Page.add_freetext_annot() can supply four or more points to overwrite the stack frame, crashing the process or executing code.
- github.comhttps://github.com/pymupdf/PyMuPDF
- github.comhttps://github.com/pymupdf/PyMuPDF/blob/1.28.2/src/extra.i#L787-L797
- github.comhttps://github.com/pymupdf/PyMuPDF/commit/d4298ead84ceeae1c9065c81cd9a275a1b092f5e
- github.comhttps://github.com/pymupdf/PyMuPDF/issues/5112
- github.comhttps://github.com/pymupdf/PyMuPDF/issues/5173
- github.comhttps://github.com/pymupdf/PyMuPDF/releases/tag/2.0
- www.vulncheck.comhttps://www.vulncheck.com/advisories/pymupdf-1.25.3-before-2.0-stack-buffer-overflow-via-add-freetext-annot-callout
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