How severe is CVE-2018-15156?

CVE-2018-15156 has a CVSS 3.x base score of 8.8, rated high severity. It is exploitable over network with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2018-15156 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 10% (95th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2018-15156?

CVE-2018-15156 affects Open-emr Openemr. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2018-15156?

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-2018-15156 published?

CVE-2018-15156 was published on 2018-08-15 and last updated on 2026-06-17.

CVE-2018-15156

CVE-2018-15156 is a high-severity vulnerability in Open-emr Openemr with a CVSS 3.x base score of 8.8. Its EPSS exploit-prediction score of 10% places it in the 95th percentile, indicating an elevated likelihood of exploitation. The underlying weakness is classified as CWE-78.

Key facts

Severity: High (CVSS 3.x base score 8.8)
CVSS v2: 6.5
EPSS exploit prediction: 10% (95th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-78
Affected product: Open-emr Openemr
Published: 2018-08-15
Last modified: 2026-06-17

Description

OS command injection occurring in versions of OpenEMR before 5.0.1.4 allows a remote authenticated attacker to execute arbitrary commands by making a crafted request to interface/fax/faxq.php after modifying the "hylafax_server" global variable in interface/super/edit_globals.php.

Frequently asked questions

What is CVE-2018-15156?: OS command injection occurring in versions of OpenEMR before 5.0.1.4 allows a remote authenticated attacker to execute arbitrary commands by making a crafted request to interface/fax/faxq.php after modifying the "hylafax_server" global variable in interface/super/edit_globals.php.
How severe is CVE-2018-15156?: CVE-2018-15156 has a CVSS 3.x base score of 8.8, rated high severity. It is exploitable over network with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2018-15156 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 10% (95th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2018-15156?: CVE-2018-15156 affects Open-emr Openemr. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2018-15156?: 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-2018-15156 published?: CVE-2018-15156 was published on 2018-08-15 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:open-emr:openemr:*:*:*:*:*:*:*:*

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