SOC status:Duty analyst on shift

UK Cyber Defence
VulnerabilityModified

CVE-2018-6187

In Artifex MuPDF 1.12.0, there is a heap-based buffer overflow vulnerability in the do_pdf_save_document function in the pdf/pdf-write.c file.

MEDIUM 5.5EPSS 1.91%

Does this matter?

Lower severity and a low EPSS score (1.91%). Track it; it rarely justifies an emergency change on its own.

Description

In Artifex MuPDF 1.12.0, there is a heap-based buffer overflow vulnerability in the do_pdf_save_document function in the pdf/pdf-write.c file. Remote attackers could leverage the vulnerability to cause a denial of service via a crafted pdf file.

CVSS 3.0
5.5 MEDIUMCVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
EPSS
1.91% probability · 80th percentile
Public exploits
None in Exploit-DB
CISA KEV
Not listed
Weakness
CWE-787
Affected
artifex/mupdf · debian/debian linux
Source
cve@mitre.org
EPSS trend
0%3%5%21 September 2026: 3.08%22 September 2026: 1.91%27 October 2026: 1.91%21 September 202627 October 2026

EPSS moved from 3.1% on 21 September 2026 to 1.9% on 27 October 2026.

Source: NVD record, EPSS from FIRST.org, KEV from CISA, exploits from Exploit-DB. Refreshed daily. Download this record as JSON.