How severe is CVE-2018-17186?

CVE-2018-17186 has a CVSS 3.x base score of 7.2, rated high severity. It is exploitable over network with low attack complexity, requires high privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2018-17186 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (83rd percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2018-17186?

CVE-2018-17186 affects Apache Syncope. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2018-17186?

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-2018-17186 published?

CVE-2018-17186 was published on 2018-11-06 and last updated on 2026-06-17.

CVE-2018-17186

CVE-2018-17186 is a high-severity vulnerability in Apache Syncope with a CVSS 3.x base score of 7.2. 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: High (CVSS 3.x base score 7.2)
CVSS v2: 6.5
EPSS exploit prediction: 2% (83rd percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-611
Affected product: Apache Syncope
Published: 2018-11-06
Last modified: 2026-06-17

Description

An administrator with workflow definition entitlements can use DTD to perform malicious operations, including but not limited to file read, file write, and code execution.

Frequently asked questions

What is CVE-2018-17186?: An administrator with workflow definition entitlements can use DTD to perform malicious operations, including but not limited to file read, file write, and code execution.
How severe is CVE-2018-17186?: CVE-2018-17186 has a CVSS 3.x base score of 7.2, rated high severity. It is exploitable over network with low attack complexity, requires high privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2018-17186 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (83rd percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2018-17186?: CVE-2018-17186 affects Apache Syncope. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2018-17186?: 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-2018-17186 published?: CVE-2018-17186 was published on 2018-11-06 and last updated on 2026-06-17.

References

https://syncope.apache.org/security#CVE-2018-17186:_XXE_on_BPMN_definitions

Affected products (1)

cpe:2.3:a:apache:syncope:*:*:*:*:*:*:*:*

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