CVE-2017-9264
In lib/conntrack.c in the firewall implementation in Open vSwitch (OvS) 2.6.1, there is a buffer over-read while parsing malformed TCP, UDP, and IPv6 packets in the functions `extract_l3_ipv6`, `extract_l4_tcp`, and `extract_l4_udp` that can be…
Does this matter?
High impact if exploited, but EPSS currently rates exploitation as unlikely (2.42%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.
Description
In lib/conntrack.c in the firewall implementation in Open vSwitch (OvS) 2.6.1, there is a buffer over-read while parsing malformed TCP, UDP, and IPv6 packets in the functions `extract_l3_ipv6`, `extract_l4_tcp`, and `extract_l4_udp` that can be triggered remotely.
- CVSS 3.0
- 9.8 CRITICALCVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
- EPSS
- 2.42% probability · 84th percentile
- Public exploits
- None in Exploit-DB
- CISA KEV
- Not listed
- Weakness
- CWE-125
- Affected
- openvswitch/openvswitch
- Source
- cve@mitre.org
EPSS 2.4% since 27 October 2026; no change recorded yet. Points are recorded when the score first appears and whenever it moves by a percentage point or more.
References
- https://access.redhat.com/errata/RHSA-2017:2418
- https://access.redhat.com/errata/RHSA-2017:2648
- https://access.redhat.com/errata/RHSA-2017:2727
- https://mail.openvswitch.org/pipermail/ovs-dev/2017-March/329323.htmlMailing List, Patch, Vendor Advisory
- https://access.redhat.com/errata/RHSA-2017:2418
- https://access.redhat.com/errata/RHSA-2017:2648
- https://access.redhat.com/errata/RHSA-2017:2727
- https://mail.openvswitch.org/pipermail/ovs-dev/2017-March/329323.htmlMailing List, Patch, Vendor Advisory
Source: NVD record, EPSS from FIRST.org, KEV from CISA, exploits from Exploit-DB. Refreshed daily. Download this record as JSON.