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CVE-2017-9264

31
FAUCET Score

CVE-2017-9264 describes a critical buffer over-read vulnerability in Open vSwitch (OvS) version 2.6.1, specifically within its firewall implementation. This flaw allows remote attackers to trigger the over-read by sending malformed TCP, UDP, or IPv6 packets, affecting the functions responsible for parsing these protocols. With a CVSS score of 9.8 (CRITICAL), the vulnerability is easily exploitable over the network with low attack complexity, potentially leading to complete compromise of confidentiality, integrity, and availability. Despite its high severity, there is no evidence of active exploitation, publicly available exploit code (Metasploit, Nuclei, ExploitDB), or significant community discussion or media coverage.

Impacted Technologies

VendorProductVersion(s)CPE
2.6.1CPE matchmatch criteria
cpe:2.3:a:openvswitch:openvswitch:2.6.1:*:*:*:*:*:*:*

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
2.42%
Probability of exploitation in next 30 days
EPSS Percentile
82.4%
Percentile rank of EPSS score among Peer Group
As of 2026-07-25
Model: v2026.06.15
This CVE's current EPSS score of 0.0242 is in the 72nd 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 (4)

redhatpatch availablevia redhat_api
Product: Fast Datapath for Red Hat Enterprise Linux 7Fixed in: openvswitch-0:2.7.2-1.git20170719.el7fdp
View patch
redhatpatch availablevia redhat_api
Product: Red Hat OpenStack Platform 10.0 (Newton)Fixed in: openvswitch-0:2.6.1-13.git20161206.el7ost
View patch
redhatpatch availablevia redhat_api
Product: Red Hat OpenStack Platform 11.0 (Ocata)Fixed in: openvswitch-0:2.6.1-13.git20161206.el7ost
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Virtualization 4.2 for Red Hat Enterprise Linux 7.6 EUSFixed in: openvswitch-0:2.7.2-1.git20170719.el7fdp
View patch

Vendor Advisories (1)

redhatCVE-2017-9264Moderate

openvswitch: Buffer over-read while parsing malformed TCP, UDP and IPv6 packets

Mar 3, 2017

References

access.redhat.com / errata/RHSA-2017:2418
access.redhat.com / errata/RHSA-2017:2648
access.redhat.com / errata/RHSA-2017:2727
mail.openvswitch.org / pipermail/ovs-dev/2017-March/329323.html
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