CVE-2017-17858

Heap-based buffer overflow in the ensure_solid_xref function in pdf/pdf-xref.c in Artifex MuPDF 1...

7.8 HighFix available

Heap-based buffer overflow in the ensure_solid_xref function in pdf/pdf-xref.c in Artifex MuPDF 1.12.0 allows a remote attacker to potentially execute arbitrary code via a crafted PDF file, because xref subsection object numbers are unrestricted.

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

2.73%Up 0.5 points since Apr 14, 2021

What each source reports

NVD Score used 7.8

Record: CVE-2017-17858
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-119
Updated: 2026-11-02

CVE List No score

Record: CVE-2017-17858
Updated: 2026-11-02

EUVDEUVD-2017-9005 No score

Record: EUVD-2017-9005
Updated: 2026-11-03

GitHub AdvisoriesGHSA-fh5j-8x7v-7wjq 7.8

Heap-based buffer overflow in the ensure_solid_xref function in pdf/pdf-xref.c in Artifex MuPDF 1...

Record: GHSA-fh5j-8x7v-7wjq
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-119
Updated: 2026-11-02

OSVALPINE-CVE-2017-17858 7.8

Record: ALPINE-CVE-2017-17858
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

OSV 7.8

Record: CVE-2017-17858
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-2017-17858 7.8

Record: UBUNTU-CVE-2017-17858
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

OSVopenSUSE-SU-2024:11068-1 No score

mupdf-1.18.0-1.7 on GA media

These are all security issues fixed in the mupdf-1.18.0-1.7 package on the GA media of openSUSE Tumbleweed.

Record: openSUSE-SU-2024:11068-1
Updated: 2026-11-02

Affected products

artifex mupdf

Affected packages

Affected packages
Package	Affected	Fixed
`mupdf` Alpine:v3.10	before 1.13-r0	1.13-r0
`mupdf` Alpine:v3.11	before 1.13-r0	1.13-r0
`mupdf` Alpine:v3.7	before 1.13-r0	1.13-r0
`mupdf` Alpine:v3.8	before 1.13-r0	1.13-r0
`mupdf` Alpine:v3.9	before 1.13-r0	1.13-r0
`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
`mupdf` openSUSE:Tumbleweed From an advisory covering 18 CVEs	before 1.18.0-1.7	1.18.0-1.7

History

History
Recorded	Changed	Sources
Nov 6, 2026	affected, facts
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-2017-17858 is a high vulnerability (CVSS 7.8) in Artifex Mupdf, published January 22, 2018. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 2.73%, the 86th percentile. Fixed in mupdf 1.13-r0.

References

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