high · CVSS v3 7.5 · CVSS v4 7.7

CVE-2026-120752

PyMuPDF 1.25.3 before 2.0 contains a stack-based buffer overflow vulnerability in JM_set_annot_callout_line() that copie…

Description

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.

Scores

Severity
high
CVSS v2
7.1
CVSS v3
7.5
CVSS v4
7.7
EPSS
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