What is CVE-2025-27834?

CVE-2025-27834 is a high-severity vulnerability in Artifex Ghostscript, classified under Buffer Copy without Checking Size of Input (Classic Buffer Overflow). CVSS score: 7.8/10. Published 2025-03-25.

How severe is CVE-2025-27834?

High severity. CVSS v3 base score is 7.8 out of 10.

Is CVE-2025-27834 known to be exploited?

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

Buffer overflow in Artifex Ghostscript

CVE-2025-27834

An issue was discovered in Artifex Ghostscript before 10.05.0. A buffer overflow occurs via an oversized Type 4 function in a PDF document to pdf/pdf_func.c.

Vulnerability class: Buffer Overflow

EPSS: 0.003 (17.1th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 7.8 (High). Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H.

Affected products

Artifex Ghostscript
N/a — versions n/a

Weakness classification (CWE)

CWE-120 — Buffer Copy without Checking Size of Input (Classic Buffer Overflow)

Public proof-of-concept exploits

w4zu/Debian_

References

cve@mitre.org (Patch, Issue Tracking)

Frequently asked questions

What is CVE-2025-27834?: CVE-2025-27834 is a high-severity vulnerability in Artifex Ghostscript, classified under Buffer Copy without Checking Size of Input (Classic Buffer Overflow). CVSS score: 7.8/10. Published 2025-03-25.
How severe is CVE-2025-27834?: High severity. CVSS v3 base score is 7.8 out of 10.
Is CVE-2025-27834 known to be exploited?: 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.