CVE-2018-18020

PoC —

CVSS 3.0

3.3 low

EPSS

1%p67

Published

Oct 6, 2018 (Oct 6, 2018)

Modified

Jun 17, 2026

Description

In QPDF 8.2.1, in libqpdf/QPDFWriter.cc, QPDFWriter::unparseObject and QPDFWriter::unparseChild have recursive calls for a long time, which allows remote attackers to cause a denial of service via a crafted PDF file.

Vendors: qpdf project
Products: qpdf
Weakness: CWE-674
Vector: CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:L

NVD CVE.org GitHub PoCs EPSS (1.2%)

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