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CVE-2018-16303

25
FAUCET Score

CVE-2018-16303 is a denial-of-service vulnerability affecting PDF-XChange Editor through version 7.0.326.1. Attackers can exploit this by crafting a malicious x:xmpmeta structure within a PDF, leading to resource exhaustion. This vulnerability has a CVSS v3.0 score of 7.5 (HIGH), indicating a high severity. It can be exploited remotely with low attack complexity and no user interaction, resulting in a complete loss of availability for the affected system. Currently, there is no evidence of active exploitation, nor are there publicly available exploit modules in Metasploit, Nuclei, or ExploitDB. Community discussion and media coverage for this CVE are minimal, suggesting low public awareness and a lack of widespread attention.

Impacted Technologies

VendorProductVersion(s)CPE
<= 7.0.326.1CPE matchmatch criteria
cpe:2.3:a:pdf-xchange:pdf-xchange_editor:*:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.0

7.5HIGH

CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
HIGH
Exploitability Score
3.9
Impact Score
3.6
CvssVersion
3.0

Exploit Intelligence

EPSS Score
1.62%
Probability of exploitation in next 30 days
EPSS Percentile
73.5%
Percentile rank of EPSS score among Peer Group
As of 2026-07-28
Model: v2026.06.15
This CVE's current EPSS score of 0.0162 is in the 56th percentile among its peer group of 51,553 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.1 Bluesky, 0.1 Mastodon, and 0.4 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.1 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Remediation records are not available for this CVE.

References

forum.tracker-software.com / viewtopic.php
ExploitIssue TrackingVendor Advisory