Stack-Based Buffer Overflow in Artifex Ghostscript Pdfwrite Component
CVE-2026-103226

5.3MEDIUM

Key Information:

Vendor

Artifex
Status
Ghostscript
Vendor
CVE Published:
30 September 2026

Badges

👾 Exploit Exists🟡 Public PoC

What is CVE-2026-103226?

A notable vulnerability was discovered in Artifex Ghostscript's Pdfwrite component, specifically in the type1_callsubr function within the gdevpsfx.c file. This issue allows for a stack-based buffer overflow, which may be exploited remotely. Given that the exploit is publicly accessible, it poses a security risk. Users are strongly advised to apply the necessary patch to mitigate this vulnerability. The resolution implemented optimally utilizes a defined macro in the font parsing loop, aligning with standard usage patterns.

Affected Version(s)

Ghostscript 10.09

Exploit Proof of Concept (PoC)

PoC code is written by security researchers to demonstrate the vulnerability can be exploited. PoC code is also a key component for weaponization which could lead to ransomware.

CVE-2026-103226 - Proof of Concept

References

https://vuldb.com/vuln/411906
vdb-entrytechnical-description
https://vuldb.com/vuln/411906/cti
signaturepermissions-required
https://vuldb.com/cve/CVE-2026-103226
third-party-advisory

CVSS V4

Score:
5.3
Severity:
MEDIUM
Confidentiality:
Low
Integrity:
Low
Availability:
Low
Attack Vector:
Network
Attack Complexity:
Low
Attack Required:
None
Privileges Required:
Undefined
User Interaction:
Unknown

Timeline

  • 🟡

    Public PoC available

  • 👾

    Exploit known to exist

  • Vulnerability published

  • Vulnerability Reserved

Credit

zzxzzb (VulDB User)
VulDB CNA Team
.