How severe is CVE-2018-1000644?

CVE-2018-1000644 has a CVSS 3.x base score of 10.0, 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-2018-1000644 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (79th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2018-1000644?

CVE-2018-1000644 primarily affects Eclipse Rdf4j. In total, 4 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2018-1000644?

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-2018-1000644 published?

CVE-2018-1000644 was published on 2018-08-20 and last updated on 2026-06-17.

CVE-2018-1000644

CVE-2018-1000644 is a critical-severity vulnerability in Eclipse Rdf4j with a CVSS 3.x base score of 10.0. 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: Critical (CVSS 3.x base score 10.0)
CVSS v2: 7.5
EPSS exploit prediction: 2% (79th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-611
Affected product: Eclipse Rdf4j
Published: 2018-08-20
Last modified: 2026-06-17

Description

Eclipse RDF4j version < 2.4.0 Milestone 2 contains a XML External Entity (XXE) vulnerability in RDF4j XML parser parsing RDF files that can result in the disclosure of confidential data, denial of service, server side request forgery, port scanning. This attack appear to be exploitable via Specially crafted RDF file.

Frequently asked questions

What is CVE-2018-1000644?: Eclipse RDF4j version < 2.4.0 Milestone 2 contains a XML External Entity (XXE) vulnerability in RDF4j XML parser parsing RDF files that can result in the disclosure of confidential data, denial of service, server side request forgery, port scanning. This attack appear to be exploitable via Specially crafted RDF file.
How severe is CVE-2018-1000644?: CVE-2018-1000644 has a CVSS 3.x base score of 10.0, 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-2018-1000644 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (79th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2018-1000644?: CVE-2018-1000644 primarily affects Eclipse Rdf4j. In total, 4 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2018-1000644?: 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-2018-1000644 published?: CVE-2018-1000644 was published on 2018-08-20 and last updated on 2026-06-17.

References

Affected products (4)

cpe:2.3:a:eclipse:rdf4j:*:*:*:*:*:*:*:*
cpe:2.3:a:eclipse:rdf4j:2.4.0:-:*:*:*:*:*:*
cpe:2.3:a:eclipse:rdf4j:2.4.0:m1:*:*:*:*:*:*
cpe:2.3:a:eclipse:rdf4j:2.4.0:m2:*:*:*:*:*:*

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CVE-2018-20227 — High (CVSS 7.5): RDF4J 2.4.2 allows Directory Traversal via ../ in an entry in a ZIP archive.

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