How severe is CVE-2016-10377?

CVE-2016-10377 has a CVSS 3.x base score of 8.8, rated high severity. It is exploitable over an adjacent network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2016-10377 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (58th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2016-10377?

CVE-2016-10377 affects Openvswitch. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2016-10377?

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-2016-10377 published?

CVE-2016-10377 was published on 2017-05-29 and last updated on 2026-06-17.

CVE-2016-10377

CVE-2016-10377 is a high-severity vulnerability in Openvswitch with a CVSS 3.x base score of 8.8. 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: High (CVSS 3.x base score 8.8)
CVSS v2: 5.8
EPSS exploit prediction: 1% (58th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-119
Affected product: Openvswitch
Published: 2017-05-29
Last modified: 2026-06-17

Description

In Open vSwitch (OvS) 2.5.0, a malformed IP packet can cause the switch to read past the end of the packet buffer due to an unsigned integer underflow in `lib/flow.c` in the function `miniflow_extract`, permitting remote bypass of the access control list enforced by the switch.

Frequently asked questions

What is CVE-2016-10377?: In Open vSwitch (OvS) 2.5.0, a malformed IP packet can cause the switch to read past the end of the packet buffer due to an unsigned integer underflow in `lib/flow.c` in the function `miniflow_extract`, permitting remote bypass of the access control list enforced by the switch.
How severe is CVE-2016-10377?: CVE-2016-10377 has a CVSS 3.x base score of 8.8, rated high severity. It is exploitable over an adjacent network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2016-10377 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (58th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2016-10377?: CVE-2016-10377 affects Openvswitch. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2016-10377?: 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-2016-10377 published?: CVE-2016-10377 was published on 2017-05-29 and last updated on 2026-06-17.

References

https://mail.openvswitch.org/pipermail/ovs-dev/2016-July/319503.html

Affected products (1)

cpe:2.3:a:openvswitch:openvswitch:2.5.0:*:*:*:*:*:*:*

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