cvedb.io
CVE-2021-3416
MEDIUM · CVSS 6
EPSS exploitation probability: 0%
Published 2021-03-18T20:15:13.300 · Last modified 2026-06-17T04:05:03.087

Summary

A potential stack overflow via infinite loop issue was found in various NIC emulators of QEMU in versions up to and including 5.2.0. The issue occurs in loopback mode of a NIC wherein reentrant DMA checks get bypassed. A guest user/process may use this flaw to consume CPU cycles or crash the QEMU process on the host resulting in DoS scenario.

Affected products

qemu — qemu

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References

This product uses data from the NVD API but is not endorsed or certified by the NVD. Informational only; not professional security advice.