How severe is CVE-2019-11189?

CVE-2019-11189 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 high, and availability none.

Is CVE-2019-11189 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (60th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2019-11189?

CVE-2019-11189 affects Opennetworking Onos. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2019-11189?

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-2019-11189 published?

CVE-2019-11189 was published on 2020-02-20 and last updated on 2026-06-17.

CVE-2019-11189

CVE-2019-11189 is a high-severity vulnerability in Opennetworking Onos 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-290.

Key facts

Severity: High (CVSS 3.x base score 7.5)
CVSS v2: 5.0
EPSS exploit prediction: 1% (60th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-290
Affected product: Opennetworking Onos
Published: 2020-02-20
Last modified: 2026-06-17

Description

Authentication Bypass by Spoofing in org.onosproject.acl (access control) and org.onosproject.mobility (host mobility) in ONOS v2.0 and earlier allows attackers to bypass network access control via data plane packet injection. To exploit the vulnerability, an attacker sends a gratuitous ARP reply that causes the host mobility application to remove existing access control flow denial rules in the network. The access control application does not re-install flow deny rules, so the attacker can bypass the intended access control policy.

Frequently asked questions

What is CVE-2019-11189?: Authentication Bypass by Spoofing in org.onosproject.acl (access control) and org.onosproject.mobility (host mobility) in ONOS v2.0 and earlier allows attackers to bypass network access control via data plane packet injection. To exploit the vulnerability, an attacker sends a gratuitous ARP reply that causes the host mobility application to remove existing access control flow denial rules in the network. The access control application does not re-install flow deny rules, so the attacker can bypass the intended access control policy.
How severe is CVE-2019-11189?: CVE-2019-11189 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 high, and availability none.
Is CVE-2019-11189 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (60th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2019-11189?: CVE-2019-11189 affects Opennetworking Onos. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2019-11189?: 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-2019-11189 published?: CVE-2019-11189 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:a:opennetworking:onos:*:*:*:*:*:*:*:*

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