CVE-2021-3501: Fedoraproject Fedora

High severity, CVSS 7.1. EPSS: 0.4% chance of exploitation in the next 30 days.

A flaw was found in the Linux kernel in versions before 5.12. The value of internal.ndata, in the KVM API, is mapped to an array index, which can be updated by a user process at anytime which could lead to an out-of-bounds write. The highest threat from this vulnerability is to data integrity and system availability.

Affected products

• Fedoraproject Fedora: version 33 only
• Linux Linux Kernel: before 5.12 (fixed in 5.12)
• Netapp Cloud Backup: affected versions not specified
• Netapp h300e Firmware: affected versions not specified
• Netapp h300s Firmware: affected versions not specified
• Netapp h410c Firmware: affected versions not specified
• Netapp h410s Firmware: affected versions not specified
• Netapp h500e Firmware: affected versions not specified
• Netapp h500s Firmware: affected versions not specified
• Netapp h700e Firmware: affected versions not specified
• Netapp h700s Firmware: affected versions not specified
• Netapp Solidfire Baseboard Management Controller Firmware: affected versions not specified
• Red Hat Enterprise Linux: version 8.0 only
• Red Hat Enterprise Linux For Real Time: version 8 only
• Red Hat Enterprise Linux For Real Time For Nfv: version 8 only
• Red Hat Enterprise Linux For Real Time For Nfv Tus: version 8.4 only
• Red Hat Enterprise Linux For Real Time Tus: version 8.4 only
• Red Hat Virtualization: version 4.0 only
• Red Hat Virtualization Host: version 4.0 only

Published 2021-05-06. Last modified 2026-08-05.