How severe is CVE-2016-2074?

CVE-2016-2074 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-2016-2074 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 6% (93rd percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2016-2074?

CVE-2016-2074 primarily affects Openvswitch. In total, 6 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2016-2074?

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-2016-2074 published?

CVE-2016-2074 was published on 2016-07-03 and last updated on 2026-06-17.

CVE-2016-2074

CVE-2016-2074 is a critical-severity vulnerability in Openvswitch 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-119.

Key facts

Severity: Critical (CVSS 3.x base score 9.8)
CVSS v2: 7.5
EPSS exploit prediction: 6% (93rd percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-119
Affected product: Openvswitch
Published: 2016-07-03
Last modified: 2026-06-17

Description

Buffer overflow in lib/flow.c in ovs-vswitchd in Open vSwitch 2.2.x and 2.3.x before 2.3.3 and 2.4.x before 2.4.1 allows remote attackers to execute arbitrary code via crafted MPLS packets, as demonstrated by a long string in an ovs-appctl command.

Frequently asked questions

What is CVE-2016-2074?: Buffer overflow in lib/flow.c in ovs-vswitchd in Open vSwitch 2.2.x and 2.3.x before 2.3.3 and 2.4.x before 2.4.1 allows remote attackers to execute arbitrary code via crafted MPLS packets, as demonstrated by a long string in an ovs-appctl command.
How severe is CVE-2016-2074?: CVE-2016-2074 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-2016-2074 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 6% (93rd percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2016-2074?: CVE-2016-2074 primarily affects Openvswitch. In total, 6 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2016-2074?: 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-2016-2074 published?: CVE-2016-2074 was published on 2016-07-03 and last updated on 2026-06-17.

References

Affected products (6)

cpe:2.3:a:openvswitch:openvswitch:2.2.0:*:*:*:*:*:*:*
cpe:2.3:a:openvswitch:openvswitch:2.3.0:*:*:*:*:*:*:*
cpe:2.3:a:openvswitch:openvswitch:2.3.1:*:*:*:*:*:*:*
cpe:2.3:a:openvswitch:openvswitch:2.3.2:*:*:*:*:*:*:*
cpe:2.3:a:openvswitch:openvswitch:2.4.0:*:*:*:*:*:*:*
cpe:2.3:a:redhat:openshift:3.1:*:*:*:enterprise:*:*:*

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