CVE-2018-25306

MEDIUM

PDFunite 0.41.0 Buffer Overflow via Malformed PDF

Title source: cna
STIX 2.1

Exploitation Summary

EIP tracks 1 public exploit for CVE-2018-25306. PoCs published by Hamm3r.py.

AI-analyzed exploit summary The provided content describes a buffer overflow vulnerability in PDFunite (part of the poppler package) when processing malformed PDF files. It includes a GDB stack trace showing the crash in the XRef::getEntry function and references a proof-of-concept file hosted externally.

Description

PDFunite 0.41.0 contains a buffer overflow vulnerability that allows local attackers to crash the application by processing malformed PDF files during merge operations. Attackers can trigger a segmentation fault in the XRef::getEntry function within libpoppler by providing a specially crafted PDF file to the pdfunite utility.

Exploits (1)

exploitdb WRITEUP
by Hamm3r.py · textdoslinux
https://www.exploit-db.com/exploits/44490

The provided content describes a buffer overflow vulnerability in PDFunite (part of the poppler package) when processing malformed PDF files. It includes a GDB stack trace showing the crash in the XRef::getEntry function and references a proof-of-concept file hosted externally.

Classification
Writeup 90%
Attack Type
Dos
Complexity
Moderate
Reliability
Theoretical
Target: poppler-utils (pdfunite) version 0.41.0
No auth needed
Prerequisites: malformed PDF file · access to execute pdfunite on the target system
devstral-2 · analyzed Apr 30, 2026 Full analysis →

References (4)

Core 4
Core References
Exploit exploit
ExploitDB-44490
https://www.exploit-db.com/exploits/44490
Product product
Official Product Homepage
https://launchpad.net/ubuntu/artful/+package/poppler-utils
Third Party Advisory third-party-advisory
VulnCheck Advisory: PDFunite 0.41.0 Buffer Overflow via Malformed PDF
https://www.vulncheck.com/advisories/pdfunite-buffer-overflow-via-malformed-pdf

Scores

CVSS v3 6.2
EPSS 0.0018
EPSS Percentile 7.4%
Attack Vector LOCAL
CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

CISA SSVC

Vulnrichment
Exploitation poc
Automatable no
Technical Impact partial

Details

CWE
CWE-120
Status published
Products (2)
canonical/pdfunite 0.41.0
poppler-utils/PDFunite 0.41.0
Published Apr 29, 2026
Tracked Since Apr 30, 2026