CVE-2018-1000038

In MuPDF 1.12.0 and earlier, a stack buffer overflow in function pdf_lookup_cmap_full in pdf/pdf...

7.8 HighFix available

In Artifex MuPDF 1.12.0 and earlier, a stack buffer overflow in function pdf_lookup_cmap_full in pdf/pdf-cmap.c could allow an attacker to execute arbitrary code via a crafted file.

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

1.91%Up 0.1 points since Apr 14, 2021

What each source reports

NVD Score used 7.8

In Artifex MuPDF 1.12.0 and earlier, a stack buffer overflow in function pdf_lookup_cmap_full in pdf/pdf-cmap.c could allow an attacker to execute arbitrary code via a crafted file.

Record: CVE-2018-1000038
CVSS 3.0: 7.8 HighCVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
CVSS 2.0: 6.8 MediumAV:N/AC:M/Au:N/C:P/I:P/A:P
Weakness: CWE-787
Updated: 2026-11-02

CVE List No score

In Artifex MuPDF 1.12.0 and earlier, a stack buffer overflow in function pdf_lookup_cmap_full in pdf/pdf-cmap.c could allow an attacker to execute arbitrary code via a crafted file.

Record: CVE-2018-1000038
Updated: 2026-11-02

EUVDEUVD-2018-1799 No score

In Artifex MuPDF 1.12.0 and earlier, a stack buffer overflow in function pdf_lookup_cmap_full in pdf/pdf-cmap.c could allow an attacker to execute arbitrary code via a crafted file.

Record: EUVD-2018-1799
Updated: 2026-11-03

GitHub AdvisoriesGHSA-96mj-rvf6-68f7 7.8

In MuPDF 1.12.0 and earlier, a stack buffer overflow in function pdf_lookup_cmap_full in pdf/pdf...

In MuPDF 1.12.0 and earlier, a stack buffer overflow in function pdf_lookup_cmap_full in pdf/pdf-cmap.c could allow an attacker to execute arbitrary code via a crafted file.

Record: GHSA-96mj-rvf6-68f7
CVSS 3.0: 7.8 HighCVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Weakness: CWE-787
Updated: 2026-11-02

OSV 7.8

In Artifex MuPDF 1.12.0 and earlier, a stack buffer overflow in function pdf_lookup_cmap_full in pdf/pdf-cmap.c could allow an attacker to execute arbitrary code via a crafted file.

Record: CVE-2018-1000038
CVSS 3.0: 7.8 HighCVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Updated: 2026-11-02

OSVDEBIAN-CVE-2018-1000038 7.8

In Artifex MuPDF 1.12.0 and earlier, a stack buffer overflow in function pdf_lookup_cmap_full in pdf/pdf-cmap.c could allow an attacker to execute arbitrary code via a crafted file.

Record: DEBIAN-CVE-2018-1000038
CVSS 3.0: 7.8 HighCVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Updated: 2026-11-02

OSVUBUNTU-CVE-2018-1000038 7.8

In Artifex MuPDF 1.12.0 and earlier, a stack buffer overflow in function pdf_lookup_cmap_full in pdf/pdf-cmap.c could allow an attacker to execute arbitrary code via a crafted file.

Record: UBUNTU-CVE-2018-1000038
CVSS 3.0: 7.8 HighCVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Updated: 2026-11-02

Affected products

artifex mupdf

Affected packages

Affected packages
Package	Affected	Fixed
`mupdf` Debian:12	before 1.13.0+ds1-1	1.13.0+ds1-1
`mupdf` Debian:13	before 1.13.0+ds1-1	1.13.0+ds1-1
`mupdf` Debian:14	before 1.13.0+ds1-1	1.13.0+ds1-1
`mupdf` Ubuntu:Pro:16.04:LTS	All versions, plus listed versions 1.7-11.7a-11.7a-1ubuntu0.1~esm1	None known
`mupdf` Ubuntu: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

History

History
Recorded	Changed	Sources
Nov 3, 2026	aliases	EUVD
Nov 2, 2026	first indexed	CVE List, GitHub Advisories, NVD, OSV

Dates are when Every CVE recorded each change. Upstream dates may differ.

In short

CVE-2018-1000038 is a high vulnerability (CVSS 7.8) in Artifex Mupdf, published May 24, 2018. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 1.91%, the 79th percentile. Fixed in mupdf 1.13.0+ds1-1.

References

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