CVE-2026-45890
medium
Red Hat EPSS Score
0.0%
Exploitation probability in 30 days
Top 93% most likely to be exploited
Vulnerability Report
Generated by CyberWatcher
Description
A flaw was found in the Linux kernel's xen-netback component. A malicious or buggy Xen guest can exploit this by writing a zero value to the 'multi-queue-num-queues' xenbus key. This improper input validation can trigger a warning in the kernel's memory allocation, leading to a guest-to-host Denial of Service (DoS) on systems configured to panic on warnings.
CWE
CWE-1284Affected Products
Red Hat Enterprise Linux 10Red Hat Enterprise Linux 6Red Hat Enterprise Linux 7Red Hat Enterprise Linux 8Red Hat Enterprise Linux 9