CVE-2020-16600
A Use After Free vulnerability exists in Artifex Software, Inc. MuPDF library 1.17.0-rc1 and...
A Use After Free vulnerability exists in Artifex Software, Inc. MuPDF library 1.17.0-rc1 and earlier when a valid page was followed by a page with invalid pixmap dimensions, causing bander - a static - to point to previously freed memory instead of a newband_writer.
Attack profile
How easy it is to exploit
- Attack vector
- Local
- Complexity
- Low
- Privileges needed
- None
- User interaction
- Required
What an attacker can affect
- Confidentiality
- High
- Integrity
- High
- Availability
- High
Exploit likelihood
What each source reports
NVD Score used
A Use After Free vulnerability exists in Artifex Software, Inc. MuPDF library 1.17.0-rc1 and earlier when a valid page was followed by a page with invalid pixmap dimensions, causing bander - a static - to point to previously freed memory instead of a newband_writer.
- Record
CVE-2020-16600- CVSS 3.1
- 7.8 High
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H - CVSS 2.0
- 6.8 Medium
AV:N/AC:M/Au:N/C:P/I:P/A:P - Weakness
- CWE-416
- Updated
- 2026-11-02
CVE List No score
A Use After Free vulnerability exists in Artifex Software, Inc. MuPDF library 1.17.0-rc1 and earlier when a valid page was followed by a page with invalid pixmap dimensions, causing bander - a static - to point to previously freed memory instead of a newband_writer.
- Record
CVE-2020-16600- Updated
- 2026-11-02
EUVDEUVD-2020-8561 No score
A Use After Free vulnerability exists in Artifex Software, Inc. MuPDF library 1.17.0-rc1 and earlier when a valid page was followed by a page with invalid pixmap dimensions, causing bander - a static - to point to previously freed memory instead of a newband_writer.
- Record
EUVD-2020-8561- Updated
- 2026-11-03
GitHub AdvisoriesGHSA-f9r5-j6qc-fj25 No score
A Use After Free vulnerability exists in Artifex Software, Inc. MuPDF library 1.17.0-rc1 and...
A Use After Free vulnerability exists in Artifex Software, Inc. MuPDF library 1.17.0-rc1 and earlier when a valid page was followed by a page with invalid pixmap dimensions, causing bander - a static - to point to previously freed memory instead of a newband_writer.
- Record
GHSA-f9r5-j6qc-fj25- Weakness
- CWE-416
- Updated
- 2026-11-02
OSV
A Use After Free vulnerability exists in Artifex Software, Inc. MuPDF library 1.17.0-rc1 and earlier when a valid page was followed by a page with invalid pixmap dimensions, causing bander - a static - to point to previously freed memory instead of a newband_writer.
- Record
CVE-2020-16600- CVSS 3.1
- 7.8 High
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H - Updated
- 2026-11-02
OSVDEBIAN-CVE-2020-16600
A Use After Free vulnerability exists in Artifex Software, Inc. MuPDF library 1.17.0-rc1 and earlier when a valid page was followed by a page with invalid pixmap dimensions, causing bander - a static - to point to previously freed memory instead of a newband_writer.
- Record
DEBIAN-CVE-2020-16600- CVSS 3.1
- 7.8 High
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H - Updated
- 2026-11-02
OSVUBUNTU-CVE-2020-16600
A Use After Free vulnerability exists in Artifex Software, Inc. MuPDF library 1.17.0-rc1 and earlier when a valid page was followed by a page with invalid pixmap dimensions, causing bander - a static - to point to previously freed memory instead of a newband_writer.
- Record
UBUNTU-CVE-2020-16600- CVSS 3.1
- 7.8 High
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H - Updated
- 2026-11-02
OSVopenSUSE-SU-2021:1341-1 No score
Security update for mupdf
This update for mupdf fixes the following issues:
- CVE-2020-19609: Fixed heap-based buffer overflow in tiff_expand_colormap() when parsing TIFF files (boo#1190176)
- CVE-2020-16600: Fixed use-after-free when a valid page was followed by a page with invalid pixmap dimensions (boo#1190175)
- Record
openSUSE-SU-2021:1341-1- Updated
- 2026-11-02
Affected products
Affected packages
| Package | Affected | Fixed |
|---|---|---|
mupdfDebian:12 |
before 1.17.0+ds1-1 | 1.17.0+ds1-1 |
mupdfDebian:13 |
before 1.17.0+ds1-1 | 1.17.0+ds1-1 |
mupdfDebian:14 |
before 1.17.0+ds1-1 | 1.17.0+ds1-1 |
mupdfUbuntu:Pro:16.04:LTS |
All versions, plus listed versions 1.7-11.7a-11.7a-1ubuntu0.1~esm1 |
None known |
mupdfUbuntu:Pro:18.04:LTS |
All versions, plus listed versions 1.11+ds1-1.11.11+ds1-21.12.0+ds1-11.12.0+ds1-1ubuntu0.1~esm11.12.0+ds1-1ubuntu0.1~esm2 |
None known |
mupdfUbuntu:Pro:20.04:LTS |
All versions, plus listed versions 1.15.0+ds1-11.16.1+ds1-1ubuntu11.16.1+ds1-1ubuntu1+esm11.16.1+ds1-1ubuntu1+esm2 |
None known |
mupdfSUSE:Package Hub 15 SP1 From an advisory covering 2 CVEs |
before 1.12.0-bp153.2.3.1 | 1.12.0-bp153.2.3.1 |
mupdfSUSE:Package Hub 15 SP2 From an advisory covering 2 CVEs |
before 1.12.0-bp153.2.3.1 | 1.12.0-bp153.2.3.1 |
mupdfSUSE:Package Hub 15 SP3 From an advisory covering 2 CVEs |
before 1.12.0-bp153.2.3.1 | 1.12.0-bp153.2.3.1 |
mupdfopenSUSE:Leap 15.2 From an advisory covering 2 CVEs |
before 1.12.0-bp153.2.3.1 | 1.12.0-bp153.2.3.1 |
mupdfopenSUSE:Leap 15.3 From an advisory covering 2 CVEs |
before 1.12.0-bp153.2.3.1 | 1.12.0-bp153.2.3.1 |
History
| Recorded | Changed | Sources |
|---|---|---|
| affected, facts | ||
| aliases | EUVD | |
| first indexed | CVE List, GitHub Advisories, NVD, OSV |
Dates are when Every CVE recorded each change. Upstream dates may differ.
In short
CVE-2020-16600 is a high vulnerability (CVSS 7.8) in Artifex Mupdf, published December 9, 2020. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 0.96%, the 61st percentile. Fixed in mupdf 1.17.0+ds1-1.
References
bugs.ghostscript.com/show_bug.cgi?id=702253
git.ghostscript.com?p=mupdf.git%3Bh=96751b25462f83d6e16a9afaf8980b0c3f979c8b
nvd.nist.gov/vuln/detail/CVE-2020-16600
github.com/advisories/GHSA-f9r5-j6qc-fj25
security-tracker.debian.org/tracker/CVE-2020-16600