- 7.1HighCVSS base score
- 0.42%Exploitation in 30 daysEPSS · top 64% of all CVEs
- NoKnown exploitednot in CISA's KEV catalog
- NonePublic exploitsnone known yet
Description
A flaw was found in Open vSwitch that allows ICMPv6 Neighbor Advertisement packets between virtual machines to bypass OpenFlow rules. This issue may allow a local attacker to create specially crafted packets with a modified or spoofed target IP address field that can redirect ICMPv6 traffic to arbitrary IP addresses.
Timeline
ID reserved
By redhat
- 3 days later
· 3 days later
Published
- 17 months later
· 17 months later
Record updated
Changes after publication (a new score, a public exploit, EPSS crossing 1, 10 or 50 %, leaving KEV) are kept since November 2026; earlier ones are not known.
Scores
| Scored by | CVSS | Score | Vector |
|---|---|---|---|
| redhatCNA (assigner) | 3.1 | High7.1 | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:H |
| NVDNVD · Modified | 3.1 | Medium5.5 | CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N |
- EPSS (exploitation in 30 days)
- 0.42% · top 64% of all CVEs (10 Nov 2026)
The list uses the assigner's score when there is one, then CISA's, then NVD's: High 7.1.
Affected products
openvswitch
All versions: affected
Red Hat · Fast Datapath for RHEL 7
All versions: affected
Red Hat · Fast Datapath for RHEL 7
All versions: unknown
Red Hat · Fast Datapath for RHEL 7
All versions: unknown
Red Hat · Fast Datapath for RHEL 7
All versions: unknown
Red Hat · Fast Datapath for RHEL 7
All versions: affected
Red Hat · Fast Datapath for RHEL 7
All versions: affected
Red Hat · Fast Datapath for RHEL 8
All versions: unknown
Red Hat · Fast Datapath for RHEL 8
All versions: unknown
Red Hat · Fast Datapath for RHEL 8
All versions: affected
Red Hat · Fast Datapath for RHEL 8
All versions: affected
Red Hat · Fast Datapath for RHEL 8
All versions: unknown
Red Hat · Fast Datapath for RHEL 8
All versions: affected
Red Hat · Fast Datapath for RHEL 8
All versions: affected
Red Hat · Fast Datapath for RHEL 9
All versions: affected
Red Hat · Fast Datapath for RHEL 9
All versions: unknown
Red Hat · Fast Datapath for RHEL 9
All versions: affected
Red Hat · Red Hat Enterprise Linux 7
All versions: affected
Red Hat · Red Hat OpenShift Container Platform 3.11
All versions: unknown
Red Hat · Red Hat OpenShift Container Platform 4
All versions: unknown
Red Hat · Red Hat OpenShift Container Platform 4
All versions: affected
Red Hat · Red Hat OpenShift Container Platform 4
All versions: affected
Red Hat · Red Hat OpenShift Container Platform 4
All versions: affected
Red Hat · Red Hat OpenShift Container Platform 4
All versions: affected
Red Hat · Red Hat OpenStack Platform 16.1
All versions: unaffected
Red Hat · Red Hat OpenStack Platform 16.2
All versions: unaffected
Red Hat · Red Hat Virtualization 4
All versions: affected
Red Hat · Red Hat Virtualization 4
All versions: affected
All versions: affected
References
6
- https://access.redhat.com/security/cve/CVE-2023-5366 (opens in a new tab)vdb-entryx_refsource_REDHATx_transferred
- RHBZ#2006347 (opens in a new tab)issue-trackingx_refsource_REDHATx_transferred
- http://www.openwall.com/lists/oss-security/2024/02/08/4 (opens in a new tab)x_transferred
- https://lists.debian.org/debian-lts-announce/2024/02/msg00004.html (opens in a new tab)x_transferred
- https://lists.fedoraproject.org/archives/list/[email protected]/message/VYYUBF6OW2JG7VOFEOROHXGSJCTES3QO/ (opens in a new tab)x_transferred
- https://lists.fedoraproject.org/archives/list/[email protected]/message/LFZADABUDOFI2KZIRQBYFZCIKH55RGY3/ (opens in a new tab)x_transferred
Sources
The same CVE in the primary databases and aggregators, to check against.
- CVE.org record (opens in a new tab)
- CVE List JSON (GitHub) (opens in a new tab)
- NVD (opens in a new tab)
- FIRST EPSS (opens in a new tab)
- EUVD EUVD-2023-57682 (opens in a new tab)
- OSV.dev (opens in a new tab)
- GitHub Advisories (opens in a new tab)
- CIRCL Vulnerability-Lookup (opens in a new tab)
Badge for a README or a ticket
[](https://cveledger.app/cve/CVE-2023-5366)Record last updated .