What is CVE-2025-59798?

CVE-2025-59798 is a medium-severity vulnerability in Artifex Ghostscript, classified under Stack-based Buffer Overflow. CVSS score: 4.3/10. Published 2025-09-22.

How severe is CVE-2025-59798?

Medium severity. CVSS v3 base score is 4.3 out of 10.

Is CVE-2025-59798 known to be exploited?

2 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.

Buffer overflow in Artifex Ghostscript

CVE-2025-59798

Artifex Ghostscript through 10.05.1 has a stack-based buffer overflow in pdf_write_cmap in devices/vector/gdevpdtw.c.

Vulnerability class: Buffer Overflow

Published 2025-09-22 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 4.3 (Medium). Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:C/C:N/I:L/A:N.

EPSS exploit prediction

EPSS: 0.002 (8.7th percentile), scored 2026-09-30.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 9th percentile — 8.7% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.002 · newest: 0.002 · change: -0.000

Affected products

Artifex Ghostscript — versions 0

Weakness classification (CWE)

CWE-121 — Stack-based Buffer Overflow

Public proof-of-concept exploits

References

bugs.ghostscript.com/show_bug.cgi (Issue Tracking)
cgit.ghostscript.com/cgi-bin/cgit.cgi/ghostpdl.git/commit/ (Patch)
af854a3a-2127-422b-91ae-364da2661108

Frequently asked questions

What is CVE-2025-59798?: CVE-2025-59798 is a medium-severity vulnerability in Artifex Ghostscript, classified under Stack-based Buffer Overflow. CVSS score: 4.3/10. Published 2025-09-22.
How severe is CVE-2025-59798?: Medium severity. CVSS v3 base score is 4.3 out of 10.
Is CVE-2025-59798 known to be exploited?: 2 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.