Out-of-Bounds Access Vulnerability in DPDK vhost-crypto by Red Hat
CVE-2026-86848

8.8HIGH

Key Information:

Vendor

Red Hat
Status
Fast Datapath For Rhel 10
Fast Datapath For Rhel 8
Fast Datapath For Rhel 9
Red Hat Enterprise Linux 10
Vendor
CVE Published:
14 October 2026

What is CVE-2026-86848?

A vulnerability exists in the DPDK vhost-crypto component, where an indirect-descriptor snapshot can lead to double-fetching of a guest descriptor's next index. This flaw allows a malicious guest to manipulate the descriptor, potentially resulting in an out-of-bounds access in the host backend, which could compromise system stability and security.

References

https://access.redhat.com/security/cve/CVE-2026-86848
vdb-entryx_refsource_REDHAT
https://bugzilla.redhat.com/show_bug.cgi?id=2529853
issue-trackingx_refsource_REDHAT

CVSS V3.1

Score:
8.8
Severity:
HIGH
Confidentiality:
High
Integrity:
High
Availability:
High
Attack Vector:
Local
Attack Complexity:
Low
Privileges Required:
Low
User Interaction:
None
Scope:
Changed

Timeline

  • Vulnerability published

  • Vulnerability Reserved

.