CVE-2025-55780

Name
CVE-2025-55780
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.
NVD Severity
unknown
Other trackers
CVE, NVD, CERT, CVE Details, CIRCL, Arch Linux, Debian, Red Hat, Ubuntu, Gentoo, SUSE (Bugzilla), SUSE (CVE), Mageia
Mailing lists
oss-security, full-disclosure, bugtraq
Exploits
Exploit DB, Metasploit
Forges
GitHub (code, issues), Aports (code, issues)

References

Type URI
cve@mitre.org https://bugs.ghostscript.com/show_bug.cgi?id=708720
cve@mitre.org https://cgit.ghostscript.com/cgi-bin/cgit.cgi/mupdf.git/commit/?id=bdd5d241748807378a78a622388e0312332513c5
cve@mitre.org https://github.com/ISH2YU/CVE-2025-55780/tree/main

Match rules

CPE URI Source package Min version Max version
n/a == n/a == n/a
cpe:2.3:a:artifex:mupdf:*:*:*:*:*:*:*:* mupdf >= 1.24.0 < 1.26.7

Vulnerable and fixed packages

Source package Branch Version Maintainer Status
mupdf edge-community 1.24.10-r0 Sören Tempel <soeren+alpine@soeren-tempel.net> possibly vulnerable
mupdf edge-community 1.25.1-r0 Sören Tempel <soeren+alpine@soeren-tempel.net> possibly vulnerable
mupdf edge-community 1.25.2-r0 Sören Tempel <soeren+alpine@soeren-tempel.net> possibly vulnerable
mupdf edge-community 1.25.2-r1 Sören Tempel <soeren+alpine@soeren-tempel.net> possibly vulnerable
mupdf edge-community 1.25.3-r0 Sören Tempel <soeren+alpine@soeren-tempel.net> possibly vulnerable
mupdf edge-community 1.25.4-r0 Sören Tempel <soeren+alpine@soeren-tempel.net> possibly vulnerable
mupdf edge-community 1.25.5-r0 Sören Tempel <soeren+alpine@soeren-tempel.net> possibly vulnerable
mupdf edge-community 1.25.6-r0 Sören Tempel <soeren+alpine@soeren-tempel.net> possibly vulnerable
mupdf edge-community 1.25.6-r1 Sören Tempel <soeren+alpine@soeren-tempel.net> possibly vulnerable
mupdf edge-community 1.25.6-r2 Sören Tempel <soeren+alpine@soeren-tempel.net> possibly vulnerable
mupdf edge-community 1.26.2-r0 Sören Tempel <soeren+alpine@soeren-tempel.net> possibly vulnerable
mupdf edge-community 1.26.4-r0 Sören Tempel <soeren+alpine@soeren-tempel.net> possibly vulnerable
mupdf 3.22-community 1.24.10-r0 Sören Tempel <soeren+alpine@soeren-tempel.net> possibly vulnerable
mupdf 3.22-community 1.25.6-r1 Sören Tempel <soeren+alpine@soeren-tempel.net> possibly vulnerable