CVSS 3.1
3.2 lowCVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:C/C:N/I:N/A:LCVE-2021-20203
Low (3.2). EPSS 0.6% chance of exploitation in the next 30 days.
An integer overflow issue was found in the vmxnet3 NIC emulator of the QEMU for versions up to v5.2.0. It may occur if a guest was to supply invalid values for rx/tx queue size or other NIC parameters. A privileged guest user may use this flaw to crash the QEMU process on the host resulting in DoS scenario.
Severity
- EPSS
- 0.6% chance of exploitation in the next 30 days; higher than 48% of CVEs (scores of 2026-10-31)
- CWE
- CWE-190
- Published
- Modified
- Record from
- the NVD, synced
Affected
- debian:debian_linux
- fedoraproject:fedora
- qemu:qemu