- 4.8MediumCVSS base score
- 0.24%Exploitation in 30 daysEPSS · top 85% of all CVEs
- NoKnown exploitednot in CISA's KEV catalog
- YesPublic exploitsa reference or SSVC says so
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.
Public exploit
An exploit or proof of concept is public: anyone can try it against an unpatched system. 3 references of the record are tagged as an exploit. CISA's SSVC rates its exploitation: a proof of concept is public.
Show the exploits3
References tagged exploit3 references
Timeline
ID reserved
By VulDB
- 1 day later
· 1 day later
Published
- 6 months later
· 6 months later
Record updated
Changes after publication (a new score, a public exploit, EPSS crossing 1, 10 or 50 %, leaving KEV) are kept since November 2026; earlier ones are not known.
Scores
| Scored by | CVSS | Score | Vector |
|---|---|---|---|
| VulDBCNA (assigner) | 4.0 | Medium4.8 | 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 |
| VulDBCNA (assigner) | 3.1 | Low3.3 | CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N/E:P/RL:X/RC:R |
| VulDBCNA (assigner) | 3.0 | Low3.3 | CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N/E:P/RL:X/RC:R |
| VulDBCNA (assigner) | 2.0 | Low1.7 | AV:L/AC:L/Au:S/C:P/I:N/A:N/E:POC/RL:ND/RC:UR |
| NVDNVD · Modified | 4.0 | Low1.9 | 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 |
- EPSS (exploitation in 30 days)
- 0.24% · top 85% of all CVEs (11 Nov 2026)
- CISA SSVC
- Exploitation: poc · Automatable: no · Technical impact: partial
The list uses the assigner's score when there is one, then CISA's, then NVD's: Medium 4.8.
Affected products
- affected 1.24.0
- affected 1.24.1
- affected 1.24.2
- affected 1.24.3
- affected 1.24.4
- affected 1.24.5
- affected 1.24.6
- affected 1.24.7
- affected 1.24.8
- affected 1.24.9
- affected 1.24.10
- affected 1.24.11
- affected 1.25.0
- affected 1.25.1
- affected 1.25.2
- affected 1.25.3
- affected 1.25.4
- affected 1.25.5
- affected 1.25.6
- affected 1.26.0
- affected 1.26.1
- affected 1.26.2
- affected 1.26.3
- affected 1.26.4
- affected 1.26.5
- affected 1.26.6
- affected 1.26.7
- affected 1.26.8
- affected 1.26.9
- affected 1.26.10
- affected 1.26.11
- affected 1.26.12
- affected 1.27.0
- affected 1.27.1
- affected 1.27.2
- affected 1.28.0
References
References7
- VDB-359840 | Artifex MuPDF CFF Index subset-cff.c fz_subset_cff_for_gids out-of-bounds (opens in a new tab)vdb-entrytechnical-description
- VDB-359840 | CTI Indicators (IOB, IOC, IOA) (opens in a new tab)signaturepermissions-required
- CVE-2026-7233 | CVE Analysis and Report (opens in a new tab)third-party-advisory
- Submit #802590 | Artifex MuPDF 1.28 Out-of-Bounds Read (opens in a new tab)third-party-advisoryexploit
- https://bugs.ghostscript.com/show_bug.cgi?id=709328 (opens in a new tab)issue-trackingexploit
- https://github.com/biniamf/pocs/tree/main/mupdf-cff-indexload-oobread (opens in a new tab)exploit
- https://artifex.com/ (opens in a new tab)product
Sources
The same CVE in the primary databases and aggregators, to check against.
- CVE.org record (opens in a new tab)
- CVE List JSON (GitHub) (opens in a new tab)
- NVD (opens in a new tab)
- FIRST EPSS (opens in a new tab)
- EUVD EUVD-2026-26000 (opens in a new tab)
- OSV.dev (opens in a new tab)
- GitHub Advisories (opens in a new tab)
- CIRCL Vulnerability-Lookup (opens in a new tab)
Badge for a README or a ticket
[](https://cveledger.app/cve/CVE-2026-7233)Record last updated .