CVE-2018-18651

Public Exploit

Description

An issue was discovered in Xpdf 4.00. catalog->getNumPages() in AcroForm.cc allows attackers to launch a denial of service (hang caused by large loop) via a specific pdf file, as demonstrated by pdftohtml. This is mainly caused by a large number after the /Count field in the file.

Category

5.5
CVSS
Severity: Medium
CVSS 3.0 •
CVSS 2.0 •
EPSS 0.18%
Third-Party Advisory xpdfreader.com Third-Party Advisory ibmcloud.com
Affected: n/a n/a
Published at:
Updated at:

References

Link Tags
https://forum.xpdfreader.com/viewtopic.php?f=3&t=41219&p=41747#p41747 third party advisory exploit
https://exchange.xforce.ibmcloud.com/vulnerabilities/152005 third party advisory

Frequently Asked Questions

What is the severity of CVE-2018-18651?
CVE-2018-18651 has been scored as a medium severity vulnerability.
How to fix CVE-2018-18651?
To fix CVE-2018-18651, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2018-18651 being actively exploited in the wild?
It is possible that CVE-2018-18651 is being exploited or will be exploited in a near future based on public information. According to its EPSS score, there is a ~0% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
This platform uses data from the NIST NVD, MITRE CVE, MITRE CWE, First.org and CISA KEV but is not endorsed or certified by these entities. CVE is a registred trademark of the MITRE Corporation and the authoritative source of CVE content is MITRE's CVE web site. CWE is a registred trademark of the MITRE Corporation and the authoritative source of CWE content is MITRE's CWE web site.
© 2025 Under My Watch. All Rights Reserved.