Buffer overflow in Artifex Ghostscript
CVE-2026-103226
A vulnerability was identified in Artifex Ghostscript up to 10.09.0. Affected is the function type1_callsubr of the file devices/vector/gdevpsfx.c of the component Pdfwrite. The manipulation leads to stack-based buffer overflow. Remote exploitation of the attack is possible. The exploit is publicly available and might be used. It is suggested to install a patch to address this issue. A solution was implemented: "I've chosen to fix this slightly differently by using the defined macro in the font parsing loop rather than in the callsubr function, because this better matches the pattern of 'normal' usage."
Vulnerability class: Buffer Overflow
Published · last modified .
CVSS v3 metric
CVSS v3 base score 6.3 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:L.
EPSS exploit prediction
No EPSS score from FIRST.org yet. New CVEs usually get one within a few days; no score means no signal yet, not low risk. How EPSS works.
Affected products
- Artifex Ghostscript — versions 10.09
Weakness classification (CWE)
References
- vuldb.com/vuln/411906 (technical-description, vdb-entry)
- vuldb.com/vuln/411906/cti (signature, permissions-required)
- vuldb.com/cve/CVE-2026-103226 (third-party-advisory)
- vuldb.com/submit/955016 (third-party-advisory)
- bugs.ghostscript.com/show_bug.cgi (issue-tracking)
- bugs.ghostscript.com/show_bug.cgi (issue-tracking)
- bugs.ghostscript.com/attachment.cgi (exploit)
- artifex.com/ (product)
Frequently asked questions
- What is CVE-2026-103226?
- CVE-2026-103226 is a medium-severity vulnerability in Artifex Ghostscript, classified under Improper Restriction of Operations within the Bounds of a Memory Buffer. CVSS score: 6.3/10. Published 2026-09-30.
- How severe is CVE-2026-103226?
- Medium severity. CVSS v3 base score is 6.3 out of 10.