How severe is CVE-2018-16303?

CVE-2018-16303 has a CVSS 3.x base score of 7.5, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is none, integrity none, and availability high.

Is CVE-2018-16303 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (73rd percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2018-16303?

CVE-2018-16303 affects Pdf-xchange Pdf-xchange Editor. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2018-16303?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.

When was CVE-2018-16303 published?

CVE-2018-16303 was published on 2018-09-01 and last updated on 2026-06-17.

CVE-2018-16303

CVE-2018-16303 is a high-severity vulnerability in Pdf-xchange Pdf-xchange Editor with a CVSS 3.x base score of 7.5. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-611.

Key facts

Severity: High (CVSS 3.x base score 7.5)
CVSS v2: 5.0
EPSS exploit prediction: 2% (73rd percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-611
Affected product: Pdf-xchange Pdf-xchange Editor
Published: 2018-09-01
Last modified: 2026-06-17

Description

PDF-XChange Editor through 7.0.326.1 allows remote attackers to cause a denial of service (resource consumption) via a crafted x:xmpmeta structure, a related issue to CVE-2003-1564.

Frequently asked questions

What is CVE-2018-16303?: PDF-XChange Editor through 7.0.326.1 allows remote attackers to cause a denial of service (resource consumption) via a crafted x:xmpmeta structure, a related issue to CVE-2003-1564.
How severe is CVE-2018-16303?: CVE-2018-16303 has a CVSS 3.x base score of 7.5, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is none, integrity none, and availability high.
Is CVE-2018-16303 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (73rd percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2018-16303?: CVE-2018-16303 affects Pdf-xchange Pdf-xchange Editor. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2018-16303?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
When was CVE-2018-16303 published?: CVE-2018-16303 was published on 2018-09-01 and last updated on 2026-06-17.

References

https://forum.tracker-software.com/viewtopic.php?f=62&t=31419

Affected products (1)

cpe:2.3:a:pdf-xchange:pdf-xchange_editor:*:*:*:*:*:*:*:*

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