How severe is CVE-2018-8940?

CVE-2018-8940 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-2018-8940 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (73rd percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2018-8940?

CVE-2018-8940 affects Enghouse Contact Center. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2018-8940?

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-2018-8940 published?

CVE-2018-8940 was published on 2019-05-14 and last updated on 2026-06-17.

CVE-2018-8940

CVE-2018-8940 is a critical-severity vulnerability in Enghouse Contact Center 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% (73rd percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-611
Affected product: Enghouse Contact Center
Published: 2019-05-14
Last modified: 2026-06-17

Description

ClientServiceConfigController.cs in Enghouse Cloud Contact Center Platform 7.2.5 has functionality for loading external XML files and parsing them, allowing an attacker to upload a malicious XML file and reference it in the URL of the application, forcing the application to load and parse the malicious XML file, aka an XXE issue.

Frequently asked questions

What is CVE-2018-8940?: ClientServiceConfigController.cs in Enghouse Cloud Contact Center Platform 7.2.5 has functionality for loading external XML files and parsing them, allowing an attacker to upload a malicious XML file and reference it in the URL of the application, forcing the application to load and parse the malicious XML file, aka an XXE issue.
How severe is CVE-2018-8940?: CVE-2018-8940 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-2018-8940 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (73rd percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2018-8940?: CVE-2018-8940 affects Enghouse Contact Center. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2018-8940?: 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-2018-8940 published?: CVE-2018-8940 was published on 2019-05-14 and last updated on 2026-06-17.

References

https://seclists.org/fulldisclosure/2019/May/9

Affected products (1)

cpe:2.3:a:enghouse:contact_center\:_service_provider:7.2.5:*:*:*:*:*:*:*

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