CVE-2025-14876: Qemu-kvm: unbounded allocation in virtio-crypto

Published Dec 18, 2025
·
Updated

A flaw was found in the virtio-crypto device of QEMU. A malicious guest operating system can exploit a missing length limit in the AKCIPHER path, leading to uncontrolled memory allocation. This can result in a denial of service (DoS) on the host system by causing the QEMU process to terminate unexpectedly.

Affected Software

1 affected component
Qemu Qemu

Event History

Dec 18, 2025
Data Sourced
via Red Hat·12:34 PM
DescriptionSeverityAffected Software
Feb 18, 2026
CVE Published
via MITRE·08:47 PM
Data Sourced
via MITRE·08:47 PM
DescriptionSeverityWeakness
Data Sourced
via NVD·09:16 PM
DescriptionSeverityWeakness
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Frequently Asked Questions

1

What is the severity of CVE-2025-14876?

CVE-2025-14876 is categorized as a moderate severity vulnerability due to its potential to cause denial of service (DoS) on the host system.

2

How do I fix CVE-2025-14876?

To fix CVE-2025-14876, ensure that you are using the latest version of QEMU that includes the security patches addressing this vulnerability.

3

What systems are affected by CVE-2025-14876?

CVE-2025-14876 affects QEMU's virtio-crypto device implementation, allowing malicious guest operating systems to exploit it.

4

What does CVE-2025-14876 exploit?

CVE-2025-14876 exploits a missing length limit in the AKCIPHER path in QEMU, leading to unbounded memory allocation.

5

What is the potential impact of CVE-2025-14876?

The potential impact of CVE-2025-14876 includes uncontrolled memory allocation that can result in a denial of service (DoS) on the host system.

Company

Resources

Contact

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CVE-2025-14876 - Qemu-kvm: unbounded allocation in virtio-crypto - SecAlerts