How severe is CVE-2018-17607?

CVE-2018-17607 has a CVSS 3.x base score of 9.8, rated critical severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2018-17607 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 3% (87th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2018-17607?

CVE-2018-17607 primarily affects Foxitsoftware Phantompdf. In total, 2 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2018-17607?

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

When was CVE-2018-17607 published?

CVE-2018-17607 was published on 2018-09-28 and last updated on 2026-06-17.

CVE-2018-17607

CVE-2018-17607 is a critical-severity vulnerability in Foxitsoftware Phantompdf with a CVSS 3.x base score of 9.8. 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-416.

Key facts

Severity: Critical (CVSS 3.x base score 9.8)
CVSS v2: 7.5
EPSS exploit prediction: 3% (87th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-416
Affected product: Foxitsoftware Phantompdf
Published: 2018-09-28
Last modified: 2026-06-17

Description

Foxit PhantomPDF and Reader before 9.3 allow remote attackers to execute arbitrary code or cause a denial of service (use-after-free) because properties of Annotation objects are mishandled. This relates to one of five distinct types of Annotation objects.

Frequently asked questions

What is CVE-2018-17607?: Foxit PhantomPDF and Reader before 9.3 allow remote attackers to execute arbitrary code or cause a denial of service (use-after-free) because properties of Annotation objects are mishandled. This relates to one of five distinct types of Annotation objects.
How severe is CVE-2018-17607?: CVE-2018-17607 has a CVSS 3.x base score of 9.8, rated critical severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2018-17607 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 3% (87th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2018-17607?: CVE-2018-17607 primarily affects Foxitsoftware Phantompdf. In total, 2 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2018-17607?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its critical severity, prioritise patching exposed systems.
When was CVE-2018-17607 published?: CVE-2018-17607 was published on 2018-09-28 and last updated on 2026-06-17.

References

https://www.foxitsoftware.com/support/security-bulletins.php

Affected products (2)

cpe:2.3:a:foxitsoftware:phantompdf:*:*:*:*:*:*:*:*
cpe:2.3:a:foxitsoftware:reader:*:*:*:*:*:*:*:*

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