How severe is CVE-2018-3851?

CVE-2018-3851 has a CVSS 3.x base score of 8.8, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2018-3851 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 3% (85th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2018-3851?

CVE-2018-3851 affects Hyland Perceptive Document Filters. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2018-3851?

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-2018-3851 published?

CVE-2018-3851 was published on 2018-04-26 and last updated on 2026-06-17.

CVE-2018-3851

CVE-2018-3851 is a high-severity vulnerability in Hyland Perceptive Document Filters with a CVSS 3.x base score of 8.8. 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-787.

Key facts

Severity: High (CVSS 3.x base score 8.8)
CVSS v2: 6.8
EPSS exploit prediction: 3% (85th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-787
Affected product: Hyland Perceptive Document Filters
Published: 2018-04-26
Last modified: 2026-06-17

Description

In Hyland Perceptive Document Filters 11.4.0.2647 - x86/x64 Windows/Linux, an exploitable stack-based buffer overflow exists in the DOC-to-HTML conversion functionality of the Hyland Perceptive Document Filters version 11.4.0.2647. A crafted .doc document can lead to a stack-based buffer, resulting in direct code execution.

Frequently asked questions

What is CVE-2018-3851?: In Hyland Perceptive Document Filters 11.4.0.2647 - x86/x64 Windows/Linux, an exploitable stack-based buffer overflow exists in the DOC-to-HTML conversion functionality of the Hyland Perceptive Document Filters version 11.4.0.2647. A crafted .doc document can lead to a stack-based buffer, resulting in direct code execution.
How severe is CVE-2018-3851?: CVE-2018-3851 has a CVSS 3.x base score of 8.8, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2018-3851 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 3% (85th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2018-3851?: CVE-2018-3851 affects Hyland Perceptive Document Filters. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2018-3851?: 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-2018-3851 published?: CVE-2018-3851 was published on 2018-04-26 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:hyland:perceptive_document_filters:11.4.0.2647:*:*:*:*:*:*:*

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