CVE-2014-9718

What it is

The (1) BMDMA and (2) AHCI HBA interfaces in the IDE functionality in QEMU 1.0 through 2.1.3 have multiple interpretations of a function's return value, which allows guest OS users to cause a host OS denial of service (memory consumption or infinite loop, and system crash) via a PRDT with zero complete sectors, related to the bmdma_prepare_buf and ahci_dma_prepare_buf functions.

At a glance

Exploitability

Can be exploited locally on the machine without logging in. High risk of service disruption.

Exploit odds

0.4% chance of exploitation in the next 30 days (EPSS).

Fix

No patch or advisory is linked yet. Look at mitigations or restrict exposure.

Timeline

1. 2015-04-21 16:59 UTC PublishedDisclosed publicly on CVE.org and NVD
2. 2026-06-17 00:18 UTC Last updatedMost recent change to the record

Why it ranks here

• Exploited in the wild: no, CISA does not list it.
• Exploit odds: 0.4% in the next 30 days (EPSS).
• Severity: 4.9 MEDIUM (CVSS).
• Fix: none linked yet, which raises it.

Details

Published

2015-04-21 16:59 UTC

Last modified

2026-06-17 00:18 UTC

Exploit probability

0.4% · EPSS, next 30 days

Weakness

CWE-399

Record status

Modified

Affected

• Debian Linux 8.0
• Qemu 1.0
• Qemu 1.0.1
• Qemu 1.1
• Qemu 1.4.1
• Qemu 1.4.2
• Qemu 1.5.0
• Qemu 1.5.1

Attack profile CVSS 2.0 · 4.9

Attack vector

Local

Complexity

Low

Authentication

None

Confidentiality

None

Integrity

None

Availability

Complete

Is it in your code?

Hand this to your coding agent. It searches your project for the affected products and checks versions. Nothing leaves your machine.

Read https://cve-list.com/agent/cve/CVE-2014-9718.md and follow it. Check whether this project is affected by CVE-2014-9718. Read only. Don't change anything and don't upload my code. Tell me yes, no or not sure, with the file as proof.

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