DEBIAN-CVE-2025-55780
- Source
- https://security-tracker.debian.org/tracker/CVE-2025-55780
- Import Source
- https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2025-55780.json
- JSON Data
- https://api.osv.dev/v1/vulns/DEBIAN-CVE-2025-55780
- Upstream
- Published
- 2025-09-23T18:15:34Z
- Modified
- 2026-09-01T20:05:54Z
- Severity
-
- 7.5 (High) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H CVSS Calculator
- Summary
- [none]
- Details
-
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.
- References
Affected packages
Debian:12 / mupdf
Package
- Name
- mupdf
- Purl
- pkg:deb/debian/mupdf?arch=source&distro=bookworm
Affected ranges
- Type
- ECOSYSTEM
- Events
-
Introduced0 Unknown introduced version / All previous versions are affected
Affected versions
1.*
1.21.1+ds2-1
1.21.1+ds2-1+deb12u1
1.22.1+ds1-1
1.22.2+ds1-1
1.22.2+ds1-2
1.23.6+ds1-1
1.23.7+ds1-1
1.23.10+ds1-1
1.23.10+ds1-2
1.24.3+ds1-1
1.24.8+ds2-1
1.24.8+ds2-2
1.24.9+ds1-1
1.24.10+ds1-1
1.25.1+ds1-1
1.25.1+ds1-2
1.25.1+ds1-3
1.25.1+ds1-4
1.25.1+ds1-5
1.25.1+ds1-6
1.25.1+ds1-7
1.25.1+ds1-8
1.25.1+ds1-9
1.27.0+ds1-1
1.27.0+ds1-2
1.27.0+ds1-3
1.27.0+ds1-4
1.27.0+ds1-5
1.27.0+ds1-6
1.28.0+ds1-1
1.28.2+ds1-1
1.28.2+ds1-2
Debian:13 / mupdf
Package
- Name
- mupdf
- Purl
- pkg:deb/debian/mupdf?arch=source&distro=trixie
Affected ranges
- Type
- ECOSYSTEM
- Events
-
Introduced0 Unknown introduced version / All previous versions are affected
Debian:14 / mupdf
Package
- Name
- mupdf
- Purl
- pkg:deb/debian/mupdf?arch=source&distro=forky