CVE-2026-7233

Artifex MuPDF CFF Index subset-cff.c fz_subset_cff_for_gids out-of-bounds

MEDIUM
6.1
CVSS Score
Published: April 28, 2026 at 06:00 AM UTC
Updated: October 26, 2026 at 09:10 PM UTC
1 product affected across 1 vendorMuPDF

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Severity
MEDIUM6.1
Exploit prediction
EPSS 0.2%
SSVC
PoC

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.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

Remediation

No guide yet

No remediation guidance has been written for this CVE yet. What the record does show:

References (6)

VDB EntryTechnical DescriptionExploitMitigationThird Party Advisory
Source: cverecord
https://vuldb.com/vuln/359840
SignaturePermissions RequiredVDB Entry
Source: cverecord
https://vuldb.com/vuln/359840/cti
Third Party AdvisoryExploitMitigationVDB Entry
Source: cverecord
https://vuldb.com/submit/802590
Issue TrackingExploitMitigationThird Party Advisory
Source: cverecord
https://bugs.ghostscript.com/show_bug.cgi?id=709328
Product
Source: cverecord
https://artifex.com/

SSVC — Action Prioritization

SSVCPoCNot automatablePartial impact

SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.

CVSS

Attack Vector
LOCAL
Complexity
LOW
Privileges
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
LOW
Integrity
NONE
Availability
HIGH
Vector?

Quick Info

StatusMODIFIED
CWE
CWE-125CWE-119

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