CVE-2026-45930
MediumCVSS 5.5Exploitation Probability (EPSS)
Low risk8th percentile - higher than 8% of all known CVEs
Summary
A vulnerability has been identified in the Linux kernel regarding improper initialization of data in nlmsg responses. The issue occurs with the RTM_GETNEIGH message, which may return uninitialized data in the pad bytes.
Risk Assessment
Improperly initialized data may lead to the disclosure of sensitive information or unpredictable system behavior, posing a security risk to the organization.
Recommendation
It is recommended to update the Linux kernel to the latest version to ensure proper initialization of data in netlink messages.
Original NVD description (English source)
In the Linux kernel, the following vulnerability has been resolved: net: mctp: ensure our nlmsg responses are initialised Syed Faraz Abrar (@farazsth98) from Zellic, and Pumpkin (@u1f383) from DEVCORE Research Team working with Trend Micro Zero Day Initiative report that a RTM_GETNEIGH will return uninitalised data in the pad bytes of the ndmsg data. Ensure we're initialising the netlink data to zero, in the link, addr and neigh response messages.