CVE-2026-7233

Exploitation

Public exploit code exists. CISA's assessment records a public proof of concept. That is not a report of exploitation in the wild.

SSVC decision

• ExploitationpocPublic proof-of-concept exploit code exists. Not a report of exploitation in the wild.
• AutomatablenoAt least one step from reconnaissance to exploitation cannot be reliably automated.
• Technical ImpactpartialSuccessful exploitation gives limited control of the vulnerable component.

CISA publishes the decision points, not a final SSVC decision. The decision also depends on mission and well-being impact, which is a property of your deployment rather than of the vulnerability.

EPSS probability

0.23% probability of exploitation activity in the next 30 days.

EPSS percentile

Equal to or higher than the score of 14.6% of scored records. A rank, not a probability.

NVD base score

1.9 (CVSS v4.0), scored by the NVD independently of the CNA.

NVD CVSS vector

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:X/V:X/RE:X/U:X

NVD analysis status

Modified. NVD last modified this record on 2026-10-26.

Red Hat severity

Low. Red Hat's rating for its own products, not a CVSS rating.

Exploit-prediction scores from FIRST. Independent scoring and analysis status from the NVD. Vendor severity from Red Hat. Exploitation assessment and catalog membership from CISA.

Published

2026-04-28 06:00Z6 MO AGO

Last updated

2026-05-05 20:23Z5 MO AGO

Reserved

2026-04-27

Assigning CNA

VulDB

Record state

PUBLISHED

Severity

Medium (CVSS 4.8)

CNA CVSS vector

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

Weaknesses

• CWE-119Improper Restriction of Operations within the Bounds of a Memory BufferClass
• CWE-125Out-of-bounds ReadBase

Data version

5.2

Document digest

43391a9f32152d88fcbe3043c1ccfb359951a750f81d86ceff3a8545a7a8b3e0

• vuldb.comVDB-359840 | Artifex MuPDF CFF Index subset-cff.c fz_subset_cff_for_gids out-of-boundshttps://vuldb.com/vuln/359840vdb-entrytechnical-description
• vuldb.comVDB-359840 | CTI Indicators (IOB, IOC, IOA)https://vuldb.com/vuln/359840/ctisignaturepermissions-required
• vuldb.comSubmit #802590 | Artifex MuPDF 1.28 Out-of-Bounds Readhttps://vuldb.com/submit/802590third-party-advisory
• bugs.ghostscript.comhttps://bugs.ghostscript.com/show_bug.cgi?id=709328issue-tracking
• github.comhttps://github.com/biniamf/pocs/tree/main/mupdf-cff-indexload-oobreadexploit
• artifex.comhttps://artifex.com/product