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Vulnerability record · CVE-2026-7233 · published 28 April 2026

CVE-2026-7233: Artifex mupdf memory buffer overflow vulnerability

Artifex · Mupdf

A vulnerability was determined in Artifex MuPDF up to 1.28.0. The impacted element is the function fz_subset_cff_for_gids of the file subset-cff.c of the component CFF Index Handler. This manipulation causes out-of-bounds read. The attack can only be executed locally. The exploit has been publicly disclosed and may be utilized. The project was informed of the problem early through a bug report but has not responded yet.

1.9 CVSS 4.0 Low EPSS 0.19% · top 91.6% CWE-119 · Memory buffer overflowCWE-125 · Out-of-bounds read
1.9CVSS 4.0 base score, v2 1.7
0.19%EPSS exploitation probability, 30 days
NoNot in CISA KEV
1Affected product versions listed by NVD
8References, 6 tagged exploit
17 Jun 2026Last modified by NVD

Description

A vulnerability was determined in Artifex MuPDF up to 1.28.0. The impacted element is the function fz_subset_cff_for_gids of the file subset-cff.c of the component CFF Index Handler. This manipulation causes out-of-bounds read. The attack can only be executed locally. The exploit has been publicly disclosed and may be utilized. The project was informed of the problem early through a bug report but has not responded yet.

CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N/E:P/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:

Affected products

1 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

LinkTags
https://artifex.com/ Product
https://bugs.ghostscript.com/show_bug.cgi?id=709328 ExploitMitigationThird Party Advisory
https://github.com/biniamf/pocs/tree/main/mupdf-cff-indexload-oobread Exploit
https://vuldb.com/submit/802590 ExploitMitigationThird Party AdvisoryVDB Entry
https://vuldb.com/vuln/359840 ExploitMitigationThird Party AdvisoryVDB Entry
https://vuldb.com/vuln/359840/cti Permissions RequiredVDB Entry
https://bugs.ghostscript.com/show_bug.cgi?id=709328 ExploitMitigationThird Party Advisory
https://vuldb.com/submit/802590 ExploitMitigationThird Party AdvisoryVDB Entry

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Same products first, then exploited flaws of the same weakness class.

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Source: NIST National Vulnerability Database (record CVE-2026-7233), CISA KEV, FIRST EPSS (scores of 2026-10-12). This page is refreshed as NVD updates the record.