Vulnerability in Openvswitch
CVE-2023-5366
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.
Published · last modified .
CVSS v3 metric
CVSS v3 base score 7.1 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:H.
EPSS exploit prediction
EPSS: 0.004 (36.0th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 36th percentile — 36.0% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.004 · newest: 0.004 · change: +0.000
Affected products
Weakness classification (CWE)
Public proof-of-concept exploits
References
- access.redhat.com/security/cve/CVE-2023-5366 (Third Party Advisory, vdb-entry)
- bugzilla.redhat.com/show_bug.cgi (issue-tracking, Patch, Third Party Advisory, Issue Tracking)
- www.openwall.com/lists/oss-security/2024/02/08/4
- lists.debian.org/debian-lts-announce/2024/02/msg00004.html
- lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/…
- lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/…
Frequently asked questions
- What is CVE-2023-5366?
- CVE-2023-5366 is a high-severity vulnerability in Openvswitch, classified under Insufficient Verification of Data Authenticity. CVSS score: 7.1/10. Published 2023-10-06.
- How severe is CVE-2023-5366?
- High severity. CVSS v3 base score is 7.1 out of 10.
- Is CVE-2023-5366 known to be exploited?
- 2 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.