Home

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.

PUBLISHED Reserved 2026-04-27 | Published 2026-04-28 | Updated 2026-04-28 | Assigner VulDB




MEDIUM: 4.8CVSS: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
LOW: 3.3CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N/E:P/RL:X/RC:R
LOW: 3.3CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N/E:P/RL:X/RC:R
1.7AV:L/AC:L/Au:S/C:P/I:N/A:N/E:POC/RL:ND/RC:UR

Problem types

Out-of-Bounds Read

Memory Corruption

Product status

1.0
affected

1.1
affected

1.2
affected

1.3
affected

1.4
affected

1.5
affected

1.6
affected

1.7
affected

1.8
affected

1.9
affected

1.10
affected

1.11
affected

1.12
affected

1.13
affected

1.14
affected

1.15
affected

1.16
affected

1.17
affected

1.18
affected

1.19
affected

1.20
affected

1.21
affected

1.22
affected

1.23
affected

1.24
affected

1.25
affected

1.26
affected

1.27
affected

1.28.0
affected

Timeline

2026-04-27:Advisory disclosed
2026-04-27:VulDB entry created
2026-04-27:VulDB entry last update

Credits

biniam (VulDB User) reporter

VulDB CNA Team coordinator

References

vuldb.com/vuln/359840 (VDB-359840 | Artifex MuPDF CFF Index subset-cff.c fz_subset_cff_for_gids out-of-bounds) vdb-entry technical-description

vuldb.com/vuln/359840/cti (VDB-359840 | CTI Indicators (IOB, IOC, IOA)) signature permissions-required

vuldb.com/submit/802590 (Submit #802590 | Artifex MuPDF 1.28 Out-of-Bounds Read) third-party-advisory

bugs.ghostscript.com/show_bug.cgi?id=709328 issue-tracking

github.com/...amf/pocs/tree/main/mupdf-cff-indexload-oobread exploit

artifex.com/ product

cve.org (CVE-2026-7233)

nvd.nist.gov (CVE-2026-7233)

Download JSON