How severe is CVE-2019-16300?

CVE-2019-16300 has a CVSS 3.x base score of 7.5, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is none, integrity none, and availability high.

Is CVE-2019-16300 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (78th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2019-16300?

CVE-2019-16300 affects Linuxfoundation Open Network Operating System. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2019-16300?

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-2019-16300 published?

CVE-2019-16300 was published on 2020-02-20 and last updated on 2026-06-17.

CVE-2019-16300

CVE-2019-16300 is a high-severity vulnerability in Linuxfoundation Open Network Operating System with a CVSS 3.x base score of 7.5. 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-755.

Key facts

Severity: High (CVSS 3.x base score 7.5)
CVSS v2: 5.0
EPSS exploit prediction: 2% (78th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-755
Affected product: Linuxfoundation Open Network Operating System
Published: 2020-02-20
Last modified: 2026-06-17

Description

An issue was discovered in Open Network Operating System (ONOS) 1.14. In the access control application (org.onosproject.acl), the host event listener does not handle the following event types: HOST_REMOVED. In combination with other applications, this could lead to the absence of intended code execution.

Frequently asked questions

What is CVE-2019-16300?: An issue was discovered in Open Network Operating System (ONOS) 1.14. In the access control application (org.onosproject.acl), the host event listener does not handle the following event types: HOST_REMOVED. In combination with other applications, this could lead to the absence of intended code execution.
How severe is CVE-2019-16300?: CVE-2019-16300 has a CVSS 3.x base score of 7.5, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is none, integrity none, and availability high.
Is CVE-2019-16300 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (78th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2019-16300?: CVE-2019-16300 affects Linuxfoundation Open Network Operating System. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2019-16300?: 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-2019-16300 published?: CVE-2019-16300 was published on 2020-02-20 and last updated on 2026-06-17.

References

https://www.ndss-symposium.org/wp-content/uploads/2020/02/24080.pdf

Affected products (1)

cpe:2.3:o:linuxfoundation:open_network_operating_system:1.14.0:-:*:*:*:*:*:*

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