How severe is CVE-2018-12544?

CVE-2018-12544 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-2018-12544 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (80th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2018-12544?

CVE-2018-12544 primarily affects Eclipse Vert.x. In total, 9 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2018-12544?

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-2018-12544 published?

CVE-2018-12544 was published on 2018-10-10 and last updated on 2026-06-17.

CVE-2018-12544

CVE-2018-12544 is a critical-severity vulnerability in Eclipse Vert.x 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-611.

Key facts

Severity: Critical (CVSS 3.x base score 9.8)
CVSS v2: 7.5
EPSS exploit prediction: 2% (80th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-611
Affected product: Eclipse Vert.x
Published: 2018-10-10
Last modified: 2026-06-17

Description

In version from 3.5.Beta1 to 3.5.3 of Eclipse Vert.x, the OpenAPI XML type validator creates XML parsers without taking appropriate defense against XML attacks. This mechanism is exclusively when the developer uses the Eclipse Vert.x OpenAPI XML type validator to validate a provided schema.

Frequently asked questions

What is CVE-2018-12544?: In version from 3.5.Beta1 to 3.5.3 of Eclipse Vert.x, the OpenAPI XML type validator creates XML parsers without taking appropriate defense against XML attacks. This mechanism is exclusively when the developer uses the Eclipse Vert.x OpenAPI XML type validator to validate a provided schema.
How severe is CVE-2018-12544?: CVE-2018-12544 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-2018-12544 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (80th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2018-12544?: CVE-2018-12544 primarily affects Eclipse Vert.x. In total, 9 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2018-12544?: 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-2018-12544 published?: CVE-2018-12544 was published on 2018-10-10 and last updated on 2026-06-17.

References

Affected products (9)

cpe:2.3:a:eclipse:vert.x:3.5.0:*:*:*:*:*:*:*
cpe:2.3:a:eclipse:vert.x:3.5.0:beta1:*:*:*:*:*:*
cpe:2.3:a:eclipse:vert.x:3.5.1:*:*:*:*:*:*:*
cpe:2.3:a:eclipse:vert.x:3.5.2:*:*:*:*:*:*:*
cpe:2.3:a:eclipse:vert.x:3.5.2:cr1:*:*:*:*:*:*
cpe:2.3:a:eclipse:vert.x:3.5.2:cr2:*:*:*:*:*:*
cpe:2.3:a:eclipse:vert.x:3.5.2:cr3:*:*:*:*:*:*
cpe:2.3:a:eclipse:vert.x:3.5.3:*:*:*:*:*:*:*
cpe:2.3:a:eclipse:vert.x:3.5.3:cr1:*:*:*:*:*:*

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