Buffer overflow in Poppler-Utils Pdfunite
CVE-2018-25306
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.
Vulnerability class: Buffer Overflow
Published · last modified .
CVSS v3 metric
CVSS v3 base score 6.2 (Medium). Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H.
EPSS exploit prediction
EPSS: 0.002 (6.5th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 7th percentile — 6.5% 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
- Poppler-Utils Pdfunite — versions 0.41.0
- Canonical Pdfunite — versions 0.41.0
Weakness classification (CWE)
References
- www.exploit-db.com/exploits/44490 (Exploit, VDB Entry, exploit)
- launchpad.net/ubuntu/artful/+package/poppler-utils (Product, product)
- launchpad.net/ubuntu/+source/poppler/0.57.0-2ubuntu4.2 (Product, product)
- www.vulncheck.com/advisories/pdfunite-buffer-overflow-via-malformed-pdf (Third Party Advisory, third-party-advisory)
Frequently asked questions
- What is CVE-2018-25306?
- CVE-2018-25306 is a medium-severity vulnerability in Poppler-Utils Pdfunite, classified under Buffer Copy without Checking Size of Input (Classic Buffer Overflow). CVSS score: 6.2/10. Published 2026-04-29.
- How severe is CVE-2018-25306?
- Medium severity. CVSS v3 base score is 6.2 out of 10.