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CVE-2018-17206

20
FAUCET Score

CVE-2018-17206 is a buffer over-read vulnerability in Open vSwitch (OvS) versions 2.7.x through 2.7.6, specifically within the decode_bundle function during BUNDLE action decoding, affecting products like Canonical, Debian, OpenvSwitch, and Red Hat. Rated Medium (CVSS 4.9), this vulnerability has a network attack vector and low attack complexity, requiring high privileges (PR:H) to exploit, and primarily impacts availability (A:H) without affecting confidentiality or integrity. There is no evidence of active exploitation, public exploit code (Metasploit, Nuclei, ExploitDB), or significant community discussion or media coverage surrounding this CVE.

Impacted Technologies

VendorProductVersion(s)CPE
>= 2.7.0, <= 2.7.6CPE matchmatch criteria
cpe:2.3:a:openvswitch:openvswitch:*:*:*:*:*:*:*:*
10CPE matchmatch criteria
cpe:2.3:a:redhat:openstack:10:*:*:*:*:*:*:*
13CPE matchmatch criteria
cpe:2.3:a:redhat:openstack:13:*:*:*:*:*:*:*
16.04CPE matchmatch criteria
cpe:2.3:o:canonical:ubuntu_linux:16.04:*:*:*:lts:*:*:*
18.04CPE matchmatch criteria
cpe:2.3:o:canonical:ubuntu_linux:18.04:*:*:*:lts:*:*:*

CVSS Data

CVSS version used by this source: 3.1

4.9MEDIUM

CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
HIGH
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
HIGH
Exploitability Score
1.2
Impact Score
3.6
CvssVersion
3.1

Exploit Intelligence

EPSS Score
2.05%
Probability of exploitation in next 30 days
EPSS Percentile
79.2%
Percentile rank of EPSS score among Peer Group
As of 2026-07-28
Model: v2026.06.15
This CVE's current EPSS score of 0.0205 is in the 87th percentile among its peer group of 3,566 CVEs.

Social Chatter

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

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.1 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Patch Available

Vendor Patches (10)

github_advisorypatch availablevia nvd_reference
View patch
redhatpatch availablevia redhat_api
Product: Red Hat OpenStack Platform 10.0 (Newton)Fixed in: openvswitch-0:2.9.0-83.el7fdp.1
View patch
redhatpatch availablevia redhat_api
Product: Red Hat OpenStack Platform 13.0 (Queens)Fixed in: openvswitch-0:2.9.0-83.el7fdp.1
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Virtualization 4.2 for Red Hat Enterprise Linux 7.6 EUSFixed in: openvswitch-0:2.9.0-70.el7fdp.1
View patch
redhatpatch availablevia redhat_api
Product: Fast Datapath for Red Hat Enterprise Linux 7Fixed in: openvswitch-0:2.9.0-70.el7fdp.1
View patch
redhatno patchvia redhat_api
Product: Red Hat Virtualization 4Fixed in: redhat-virtualization-host
redhatend of lifevia redhat_api
Product: Red Hat Virtualization 4Fixed in: rhvm-appliance
redhatend of lifevia redhat_api
Product: Red Hat OpenStack Platform 12 (Pike)Fixed in: openvswitch
redhatend of lifevia redhat_api
Product: Red Hat OpenStack Platform 8 (Liberty)Fixed in: openvswitch
redhatend of lifevia redhat_api
Product: Red Hat OpenStack Platform 9 (Mitaka)Fixed in: openvswitch

Vendor Advisories (1)

redhatCVE-2018-17206Moderate

openvswitch: Buffer over-read in lib/ofp-actions.c:decode_bundle()

Sep 25, 2018

References

access.redhat.com / errata/RHSA-2018:3500
Third Party Advisory
access.redhat.com / errata/RHSA-2019:0053
Third Party Advisory
access.redhat.com / errata/RHSA-2019:0081
Third Party Advisory
github.com / openvswitch/ovs/commit/9237a63c47bd314b807cda0bd2216264e82edbe8
PatchThird Party Advisory
lists.debian.org / debian-lts-announce/2021/02/msg00032.html
Mailing ListThird Party Advisory
usn.ubuntu.com / 3873-1
Third Party Advisory