CVE-2026-86848: high-severity vulnerability in Red Hat Fast Datapath for RHEL 10
Dpdk: dpdk: time-of-check/time-of-use vulnerability allowing guest-triggered out-of-bounds write in vhost-crypto
Published · Updated
E-mail alert when it lands in KEV, gets a public PoC or its score goes up.
21Vexday Risk Score
No sign of exploitation. No public exploitation artifact known so far.
ssvc Trackcvss 8.8epss 0.1%
A flaw was found in DPDK lib/vhost vhost-crypto. The indirect-descriptor snapshot double-fetches a guest descriptor next index, allowing a malicious guest to cause an out-of-bounds access in the host backend.
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H
Affected products
Red Hat · Fast Datapath for RHEL 10Red Hat · Fast Datapath for RHEL 8Red Hat · Fast Datapath for RHEL 9Red Hat · Red Hat Enterprise Linux 10Red Hat · Red Hat Enterprise Linux 8Red Hat · Red Hat Enterprise Linux 9Red Hat · Red Hat OpenShift Container Platform 4Red Hat · Red Hat OpenStack Platform 13 (Queens)Related CVEs — Red Hat Fast Datapath for RHEL 10
In the same product, most dangerous first.
CVE-2023-3966HIGHOpenvswsitch: ovs-vswitch fails to recover after malformed geneve metadata packetEPSS 1.3%CVE-2023-3153MEDIUMService monitor mac flow is not rate limitedEPSS 1.0%CVE-2026-5367HIGHOvn: ovn: information disclosure via crafted dhcpv6 packetsEPSS 0.9%CVE-2024-2182MEDIUMOvn: insufficient validation of bfd packets may lead to denial of serviceEPSS 0.8%CVE-2026-5265MEDIUMOvn: ovn: heap over-read in icmp error response generationEPSS 0.6%CVE-2024-11614HIGHDpdk: denial of service from malicious guest on hypervisors using dpdk vhost libraryEPSS 0.6%