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CVE-2016-2074

34
FAUCET Score

CVE-2016-2074 describes a critical buffer overflow vulnerability in ovs-vswitchd within Open vSwitch versions 2.2.x and 2.3.x before 2.3.3, and 2.4.x before 2.4.1, also affecting Red Hat OpenShift and Open vSwitch. This flaw allows remote attackers to execute arbitrary code by sending specially crafted MPLS packets, as demonstrated by a long string in an ovs-appctl command. With a CVSS score of 9.8, this vulnerability is highly severe, requiring no user interaction or authentication, and can lead to complete compromise of confidentiality, integrity, and availability. Despite its critical nature, there is no evidence of active exploitation, public exploit code (Metasploit, Nuclei, ExploitDB), or significant community discussion or media coverage.

Impacted Technologies

VendorProductVersion(s)CPE
2.2.0CPE matchmatch criteria
cpe:2.3:a:openvswitch:openvswitch:2.2.0:*:*:*:*:*:*:*
2.3.0CPE matchmatch criteria
cpe:2.3:a:openvswitch:openvswitch:2.3.0:*:*:*:*:*:*:*
2.3.1CPE matchmatch criteria
cpe:2.3:a:openvswitch:openvswitch:2.3.1:*:*:*:*:*:*:*
2.3.2CPE matchmatch criteria
cpe:2.3:a:openvswitch:openvswitch:2.3.2:*:*:*:*:*:*:*
2.4.0CPE matchmatch criteria
cpe:2.3:a:openvswitch:openvswitch:2.4.0:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.0

9.8CRITICAL

CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
Exploitability Score
3.9
Impact Score
5.9
CvssVersion
3.0

Exploit Intelligence

EPSS Score
6.28%
Probability of exploitation in next 30 days
EPSS Percentile
92.8%
Percentile rank of EPSS score among Peer Group
As of 2026-07-24
Model: v2026.06.15
This CVE's current EPSS score of 0.0628 is in the 88th percentile among its peer group of 36,829 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.1 Reddit, 0.3 Bluesky, 0.3 Mastodon, and 2.4 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.3 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Patch Available

Vendor Patches (5)

redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux OpenStack Platform 5.0 (Icehouse) for RHEL 7Fixed in: openvswitch-0:2.4.0-2.el7_2
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux OpenStack Platform 6.0 (Juno) for RHEL 7Fixed in: openvswitch-0:2.4.0-2.el7_2
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux OpenStack Platform 7.0 (Kilo) for RHEL 7Fixed in: openvswitch-0:2.4.0-2.el7_2
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux OpenStack Platform 7.0 (Kilo) for RHEL 7Fixed in: openvswitch-dpdk-0:2.4.0-0.10346.git97bab959.3.el7_2
View patch
redhatpatch availablevia redhat_api
Product: Red Hat OpenShift Enterprise 3.1Fixed in: openvswitch-0:2.4.0-2.el7_2
View patch

Vendor Advisories (1)

redhatCVE-2016-2074Important

openvswitch: MPLS buffer overflow vulnerability

Mar 28, 2016

References

openvswitch.org / pipermail/announce/2016-March/000082.html
Vendor Advisory
openvswitch.org / pipermail/announce/2016-March/000083.html
Patch
rhn.redhat.com / errata/RHSA-2016-0523.html
rhn.redhat.com / errata/RHSA-2016-0524.html
rhn.redhat.com / errata/RHSA-2016-0537.html
access.redhat.com / errata/RHSA-2016:0615
bugzilla.redhat.com / show_bug.cgi
security.gentoo.org / glsa/201701-07
security-tracker.debian.org / tracker/CVE-2016-2074
support.citrix.com / article/CTX232655
debian.org / security/2016/dsa-3533
securityfocus.com / bid/85700