CVE-2018-1000040

In MuPDF 1.12.0 and earlier, multiple use of uninitialized value bugs in the PDF parser could...

5.5 MediumFix available

In Artifex MuPDF 1.12.0 and earlier, multiple use of uninitialized value bugs in the PDF parser could allow an attacker to cause a denial of service (crash) or influence program flow 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: None
Integrity: None
Availability: High

Exploit likelihood

1.42%Down 0.9 points since Apr 14, 2021

What each source reports

NVD Score used 5.5

Record: CVE-2018-1000040
CVSS 3.0: 5.5 MediumCVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
CVSS 2.0: 4.3 MediumAV:N/AC:M/Au:N/C:N/I:N/A:P
Weakness: CWE-20
Updated: 2026-11-02

CVE List No score

Record: CVE-2018-1000040
Updated: 2026-11-02

EUVDEUVD-2018-1801 No score

Record: EUVD-2018-1801
Updated: 2026-11-03

GitHub AdvisoriesGHSA-c4gp-6356-63vc 5.5

In MuPDF 1.12.0 and earlier, multiple use of uninitialized value bugs in the PDF parser could...

In MuPDF 1.12.0 and earlier, multiple use of uninitialized value bugs in the PDF parser could allow an attacker to cause a denial of service (crash) or influence program flow via a crafted file.

Record: GHSA-c4gp-6356-63vc
CVSS 3.0: 5.5 MediumCVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
Weakness: CWE-20
Updated: 2026-11-02

OSV 5.5

Record: CVE-2018-1000040
CVSS 3.0: 5.5 MediumCVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
Updated: 2026-11-02

OSVDEBIAN-CVE-2018-1000040 5.5

Record: DEBIAN-CVE-2018-1000040
CVSS 3.0: 5.5 MediumCVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
Updated: 2026-11-02

OSVUBUNTU-CVE-2018-1000040 5.5

Record: UBUNTU-CVE-2018-1000040
CVSS 3.0: 5.5 MediumCVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
Updated: 2026-11-02

Affected products

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` Debian:9	before 1.9a+ds1-4+deb9u4, plus listed versions 1.9a+ds1-41.9a+ds1-4+deb9u11.9a+ds1-4+deb9u21.9a+ds1-4+deb9u3	1.9a+ds1-4+deb9u4
`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-2018-1000040 is a medium vulnerability (CVSS 5.5) 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 1.42%, the 72nd percentile. Fixed in mupdf 1.13.0+ds1-1.

References

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