How severe is CVE-2018-17781?

CVE-2018-17781 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 high, integrity none, and availability none.

Is CVE-2018-17781 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (82nd percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2018-17781?

CVE-2018-17781 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-2018-17781?

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-2018-17781 published?

CVE-2018-17781 was published on 2018-09-29 and last updated on 2026-06-17.

CVE-2018-17781

CVE-2018-17781 is a high-severity vulnerability in Foxitsoftware Phantompdf 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-200.

Key facts

Severity: High (CVSS 3.x base score 7.5)
CVSS v2: 5.0
EPSS exploit prediction: 2% (82nd percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-200
Affected product: Foxitsoftware Phantompdf
Published: 2018-09-29
Last modified: 2026-06-17

Description

Foxit PhantomPDF and Reader before 9.3 allow remote attackers to trigger Uninitialized Object Information Disclosure because creation of ArrayBuffer and DataView objects is mishandled.

Frequently asked questions

What is CVE-2018-17781?: Foxit PhantomPDF and Reader before 9.3 allow remote attackers to trigger Uninitialized Object Information Disclosure because creation of ArrayBuffer and DataView objects is mishandled.
How severe is CVE-2018-17781?: CVE-2018-17781 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 high, integrity none, and availability none.
Is CVE-2018-17781 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (82nd percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2018-17781?: CVE-2018-17781 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-2018-17781?: 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-2018-17781 published?: CVE-2018-17781 was published on 2018-09-29 and last updated on 2026-06-17.

References

Affected products (2)

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

More vulnerabilities in Foxitsoftware Phantompdf

CVE-2021-38574 — Critical (CVSS 9.8): An issue was discovered in Foxit Reader and PhantomPDF before 10.1.4. It allows SQL Injection via crafted data at the…
CVE-2021-38573 — Critical (CVSS 9.8): An issue was discovered in Foxit Reader and PhantomPDF before 10.1.4. It allows writing to arbitrary files because a…
CVE-2021-38572 — Critical (CVSS 9.8): An issue was discovered in Foxit Reader and PhantomPDF before 10.1.4. It allows writing to arbitrary files because the…
CVE-2021-38568 — Critical (CVSS 9.8): An issue was discovered in Foxit Reader and PhantomPDF before 10.1.4. It allows memory corruption during conversion of…
CVE-2021-33793 — Critical (CVSS 9.8): Foxit Reader before 10.1.4 and PhantomPDF before 10.1.4 have an out-of-bounds write because the Cross-Reference table…
CVE-2020-26539 — Critical (CVSS 9.8): An issue was discovered in Foxit Reader and PhantomPDF before 10.1. When there is a multiple interpretation error for…

All CVEs affecting Foxitsoftware Phantompdf →

Other CWE-200 (Exposure of Sensitive Information to an Unauthorized Actor) vulnerabilities

CVE-2026-27604 — Critical (CVSS 10.0): FOSSBilling is a free, open-source billing and client management system. Starting in version 0.5.4 and prior to version…
CVE-2026-40965 — Critical (CVSS 10.0): Cloud Foundry UAA versions v76.12.0 through v78.12.0 are vulnerable to a private key exposure. The server contains a…
CVE-2026-42826 — Critical (CVSS 10.0): Exposure of sensitive information to an unauthorized actor in Azure DevOps allows an unauthorized attacker to disclose…
CVE-2025-29270 — Critical (CVSS 10.0): Incorrect access control in the realtime.cgi endpoint of Deep Sea Electronics devices DSE855 v1.1.0 to v1.1.26 allows…
CVE-2025-61481 — Critical (CVSS 10.0): An issue in MikroTik RouterOS v.7.14.2 and SwOS v.2.18 exposes the WebFig management interface over cleartext HTTP by…
CVE-2025-53624 — Critical (CVSS 10.0): The Docusaurus gists plugin adds a page to your Docusaurus instance, displaying all public gists of a GitHub user.…

Browse all CWE-200 (Exposure of Sensitive Information to an Unauthorized Actor) vulnerabilities →