---
title: "CVE-2026-86848: DPDK lib/vhost - Out of Bounds Read/Write"
description: "DPDK lib/vhost vhost-crypto contains an out-of-bounds access caused by indirect-descriptor snapshot double-fetching a guest descriptor next index, letting malicious guests cause memory corruption, exploit requires malicious guest access."
url: https://panop.io/threat-heartbeat/CVE-2026-86848/
---

# CVE-2026-86848 DPDK lib/vhost - Out of Bounds Read/Write

DPDK lib/vhost vhost-crypto contains an out-of-bounds access caused by indirect-descriptor snapshot double-fetching a guest descriptor next index, letting malicious guests cause memory corruption, exploit requires malicious guest access.

CVSS base score 8.8 /10

High

CISA KEV

Not listed

Public exploit

None known

Authentication

Required

[View the NVD record ↗](https://nvd.nist.gov/vuln/detail/CVE-2026-86848)

## Details

Type

Out of Bounds Read/Write

Impact

Denial Of Service, Remote Code Execution

CVSS vector

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H

Published

14 October 2026

Updated

15 October 2026

Weakness

[CWE-367](https://cwe.mitre.org/data/definitions/367.html)

## Vendor fix

Update to the latest version of DPDK containing the fix.

Patching closes this CVE. It does not tell you which of your systems run the affected version, or what else is exposed alongside them.

## References

- [https://nvd.nist.gov/vuln/detail/CVE-2026-86848](https://nvd.nist.gov/vuln/detail/CVE-2026-86848)
- [https://access.redhat.com/security/cve/CVE-2026-86848](https://access.redhat.com/security/cve/CVE-2026-86848)
- [https://bugzilla.redhat.com/show\_bug.cgi?id=2529853](https://bugzilla.redhat.com/show_bug.cgi?id=2529853)

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## What this record can't tell you

- Whether you run the affected software, and where
- Whether an attacker can actually reach and exploit it
- The misconfigurations that never get a CVE number
- What it would cost the business, ranked into what to fix first

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