CVE-2021-3407 — Double Free in Mupdf

CWE-415 — Double FreeCWE-119 — Improper Restriction of Operations within the Bounds of a Memory Buffer6 documents6 sources
Severity
5.5MEDIUMNVD
EPSS
0.6%
top 29.21%
CISA KEV
Not in KEV
Exploit
No known exploits
Affected products
3
Artifex MupdfDebian LinuxFedoraproject Fedora
Timeline
PublishedFeb 23
Latest updateOct 16

Description

A flaw was found in mupdf 1.18.0. Double free of object during linearization may lead to memory corruption and other potential consequences.

CVSS vector

CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:HExploitability: 1.8 | Impact: 3.6

Affected Packages3 packages

▶Debianartifex/mupdf< 1.17.0+ds1-1.3+3
▶CVEListV5artifex/mupdfmupdf 1.18.0
▶NVDartifex/mupdf1.18.0

Also affects: Debian Linux 9.0, Fedora 32, 33, 34

🔴Vulnerability Details

3
GHSA
GHSA-5qxg-m35q-xr56: A flaw was found in mupdf 1↗2022-05-24
▶
OSV
CVE-2021-3407: A flaw was found in mupdf 1↗2021-02-23
▶
CVEList
CVE-2021-3407: A flaw was found in mupdf 1↗2021-02-23
▶

📋Vendor Advisories

2
Ubuntu
MuPDF vulnerabilities↗2025-10-16
▶
Debian
CVE-2021-3407: mupdf - A flaw was found in mupdf 1.18.0. Double free of object during linearization may...↗2021
▶
CVE-2021-3407 — Double Free in Artifex Mupdf | cvebase