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  4. CVE 2026 7233 artifex mupdf cff index subset cffc
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Back to active CVEs
Medium · CVSS 4.8CVE-2026-7233

Artifex MuPDF CFF Index subset-cff.c fz_subset_cff_for_gids out-of-boundsCVE-2026-7233

Answer in brief

CVE-2026-7233 records a Medium severity (CVSS 4.8) vulnerability in Artifex MuPDF CFF Index subset-cff.c fz_subset_cff_for_gids out-of-bounds. The current sources do not mark it as known exploited. The current feed maps Artifex/MuPDF (generic). Check affected ranges and fixed versions before updating.

Analysis pending evidence review

HOL Guard separates source facts from reviewed analysis. See the methodology.

Published Apr 28, 2026Updated Nov 1, 2026Source checked Nov 1, 2026First seen by HOL Oct 28, 2026Material review Nov 1, 2026
Upstream Advisory

Key facts

Risk
Medium · CVSS 4.8
Exploitation
Not marked as known exploited
Affected software
2 mapped packages or products
Fix availability
Not reported

Why this deserves its current priority

CVSS is 4.8. The current sources do not mark it as known exploited. Treat this as a source-backed prioritization signal, not a statement about your environment.

Analysis status

Analysis pending evidence review

Factual feed record only; HOL analysis is not approved for indexing. Read the methodology.

Affected scope and exposure questions

The current feed maps Artifex/MuPDF (generic). Check affected ranges and fixed versions before updating.

Affected products and reported versions
ProductAffected versionsFixed versions
cpe:2.3:a:artifex:mupdf:*:*:*:*:*:*:*:*Not reportedNot reported
Mapped affected packages and fixed versions
PackageAffected rangeFixed version
Artifex/MuPDFgeneric1.24.0 || 1.24.1 || 1.24.2 || 1.24.3 || 1.24.4 || 1.24.5 || 1.24.6 || 1.24.7 || 1.24.8 || 1.24.9 || 1.24.10 || 1.24.11 || 1.25.0 || 1.25.1 || 1.25.2 || 1.25.3 || 1.25.4 || 1.25.5 || 1.25.6 || 1.26.0 || 1.26.1 || 1.26.2 || 1.26.3 || 1.26.4 || 1.26.5 || 1.26.6 || 1.26.7 || 1.26.8 || 1.26.9 || 1.26.10 || 1.26.11 || 1.26.12 || 1.27.0 || 1.27.1 || 1.27.2 || 1.28.0Not reported

Recommended response

  1. 1Check inventory. Check lockfiles and deployed manifests for Artifex/MuPDF.
  2. 2Review the reported fix. Monitor this advisory for an available fix and review any installs of the affected package.

Evidence timeline and material changes

  1. Published upstream

    Apr 28, 2026

    Evidence: source:cvelist:source_dates:source-dates:record

  2. Source modified

    Nov 1, 2026

    Evidence: source:cvelist:source_dates:source-dates:record

  3. First seen by HOL

    Oct 28, 2026

Sources and claim methodology

  • Source referenceartifex.com
  • Source referencebugs.ghostscript.com
  • GitHub security advisorygithub.com
  • Source referencevuldb.com
  • Source referencevuldb.com
  • Source referencevuldb.com
  • Source referencevuldb.com
Upstream source description

A vulnerability was determined in Artifex MuPDF. 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.

Quoted source text, attributed separately from HOL analysis.

Related CVEs

  • D-Link DIR-505 TFTP Upload Filename tftpd mp_upload_file stack-based overflowAlso CWE-119

Record context

Vulnerability class
Buffer Overflow
EPSS
Not reported
CWE IDs
CWE-119, CWE-125
Source
CVE List V5
Source checked
Nov 1, 2026
References
7 linked sources
Open source record